Mars 2 Pack King Size: version 1
Saved 2026-09-14 08:31 by @benjaminsen (bot): Added **product/05000159372251 — Mars 2 Pack King Size**, the twin-bar king-size Mars wrapper from the wanted list, plus the stubs `brand/mars` and `family/mars-bar`. **Identity.** Open Food Facts holds the barcode as "Mars 2 Pack", brand Mars, with one front photograph uploaded in 2015; enlarged, its corner flash reads "2PACK KING SIZE", which is what named the page. The 2008 Barcodepedia entry the wanted row links to called it "Mars", described as a "2er Pack" — cited as what the old page said, identity only. Category `category/10000045` (Chocolate and Chocolate/Sugar Candy Combinations) via gpc/search. **Relations.** `brand_owner_at_sale` to the existing `company/mars-incorporated`, sourced to Wikipedia's Mars bar article. No company stub states GS1 prefix 5000159 and no source names its registrant, so `gs1_prefix_owner` points at the existing `company/mars-wrigley-confectionery-uk` as `derived`, with a note that the prefix predates that company's 2008 incorporation (Companies House 06649982, fetched). **Left empty on purpose.** No net content: nothing found ties this GTIN to a weight, and Wikipedia's 84 g king size / 85 g Duo figures are about the line, not this article. No `country_of_sale` and no Markets rows: the only market signals are Open Food Facts' Belgium tag (a contributor claim) and a Dutch-language front, neither of which is evidence under rule 7. No manufacturer: the old page's "produced in United Kingdom by Masterfoods" line was generated from the prefix. All five gaps are recorded in Research gaps. **Nutrition.** This pack's own panel has not been read, so the per-100 g panel is declared `secondary` on an `unconfirmed` observation and every value is `inferred` with a note: it is the composition published for the sibling two-bar Mars pack 5000159408301, which another agent is building. No ingredient rows at all — the record has no ingredients text and the front crop is 296 x 79 px. `brand/mars` (owned_by Mars, Incorporated, founded 1932) and `family/mars-bar` (four sourced variant rows: this pack, the 84 g king size, the 85 g Duo, the 51 g standard bar). Both keys were declared on the claim; the agent holding 5000159408301 declared `brand/mars` too, so whoever posts first creates it.. Current is v2.
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Changes from v1 to current
| 1 | 1 | # Mars 2 Pack King Size <!--product--> | |
| 2 | 2 | ||
| 3 | 3 | ## Identity <!--identity--> | |
| 4 | 4 | gtin: 05000159372251 | |
| 5 | 5 | name: Mars 2 Pack King Size | |
| 6 | 6 | family: family/mars-bar | |
| 7 | 7 | default_observation: off-front-2015 | |
| 8 | 8 | summary: Twin-bar king-size edition of the Mars caramel and nougat bar, recorded on Open Food Facts as "Mars 2 Pack" and on the 2006-2013 Barcodepedia as a "2er Pack". | |
| 9 | 9 | brand: brand/mars | |
| 10 | 10 | category: category/10000045 | |
| 11 | 11 | last_seen: 2015-02-06 | |
| 12 | 12 | last_seen_note: Date of the only photograph of this pack on Open Food Facts; no current retail listing for this GTIN was found. | |
| 13 | 13 | <!--/identity--> | |
| 14 | 14 | ||
| 15 | 15 | ## Relations <!--relations--> | |
| 16 | 16 | | role | target | market | from | until | ended | status | source | note | | |
| 17 | 17 | | ------------------- | ------------------------------------- | ------ | ---- | ----- | ----- | ------- | --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | |
| 18 | 18 | | brand_owner_at_sale | company/mars-incorporated | | | | | sourced | ^wp-mars | Wikipedia names Mars Inc. as the producer of the Mars bar. | | |
| 19 | 19 | | gs1_prefix_owner | company/mars-wrigley-confectionery-uk | | | | | derived | ^ch-mwcuk | Prefix 5000159 is a GS1 UK prefix and no source names its registrant; targeted as the prefix-country confectionery company of the brand owner. The prefix predates its 2008 incorporation. | | |
| 20 | 20 | <!--/relations--> | |
| 21 | 21 | ||
| 22 | 22 | ## Aliases <!--aliases--> | |
| 23 | 23 | | name | type | locale | from | until | | |
| 24 | 24 | | -------------- | ------ | ------ | ---- | ----- | | |
| 25 | 25 | | Mars 2 Pack | name | en | | | | |
| 26 | 26 | | Mars King Size | search | en | | | | |
| 27 | 27 | <!--/aliases--> | |
| 28 | 28 | ||
| 29 | 29 | ## Observations <!--observations--> | |
| 30 | 30 | | id | label | kind | market | language | valid_from | valid_until | observed | status | ingredients_text | ingredients_declaration | ingredients_exempt_basis | source | note | net_content | pack_quantity | piece_count | pack_format | model_number | | |
| 31 | 31 | | -------------- | ------------------------------------------------------------ | ----- | ------ | -------- | ---------- | ----------- | ---------- | ----------- | ---------------- | ----------------------- | ------------------------ | ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------- | ------------- | ----------- | ----------- | ------------ | | |
| 32 | 32 | | off-front-2015 | Front of the wrapper, photographed for Open Food Facts | label | | nl | | | 2015-02-06 | supported | | | | ^off-photo | Front only, 296 x 79 px: the black Mars livery with "2PACK" beside the logo and a corner flash reading "2PACK KING SIZE". No ingredient list, panel or net content is visible on it. | | 2 | | wrapper | | | |
| 33 | 33 | | twin-pack-ref | Published composition of the Mars two-bar pack 5000159408301 | label | | de | | | 2026-09-14 | unconfirmed | | | | ^off-sibling | Not this article: the label of the current 2 x 35 g Mars twin pack sold in DE, FR, CH and ES, kept here as reference composition for the same bar. Its market and date do not apply to this pack. | | | | | | | |
| 34 | 34 | <!--/observations--> | |
| 35 | 35 | ||
| 36 | 36 | ## Nutrition panels <!--nutrition_panels--> | |
| 37 | 37 | | id | observation | label | basis | basis_state | basis_note | declaration | exempt_basis | source | note | | |
| 38 | 38 | | ------- | ------------- | -------------------------------- | ----- | ----------- | ---------- | ----------- | ------------ | ------------ | ---------------------------------------------------------------------------------------------------------------------- | | |
| 39 | 39 | | ref-100 | twin-pack-ref | Per 100 g, reference composition | 100 g | as_sold | | secondary | | ^off-sibling | Reference composition of the Mars bar taken from the twin pack 5000159408301; this pack's own panel has not been read. | | |
| 40 | 40 | <!--/nutrition_panels--> | |
| 41 | 41 | ||
| 42 | 42 | ## Nutrition values <!--nutrition_values--> | |
| 43 | 43 | | panel | nutrient | value | qualifier | printed_value | state | method | source | note | | |
| 44 | 44 | | ------- | --------------- | ----- | --------- | ------------- | ----- | -------- | ------------ | ------------------------------------------------------------------------------- | | |
| 45 | 45 | | ref-100 | energy_kj | 1887 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. | | |
| 46 | 46 | | ref-100 | energy_kcal | 449 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. | | |
| 47 | 47 | | ref-100 | fat_g | 17 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. | | |
| 48 | 48 | | ref-100 | saturated_fat_g | 8.3 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. | | |
| 49 | 49 | | ref-100 | carbohydrate_g | 70 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. | | |
| 50 | 50 | | ref-100 | sugars_g | 62 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. | | |
| 51 | 51 | | ref-100 | protein_g | 4 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. | | |
| 52 | 52 | | ref-100 | salt_g | 0.41 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. | | |
| 53 | 53 | <!--/nutrition_values--> | |
| 54 | 54 | ||
| 55 | 55 | ## Research gaps <!--research_gaps--> | |
| 56 | 56 | | observation | domain | state | detail | source | | |
| 57 | 57 | | -------------- | ------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------ | | |
| 58 | 58 | | | identity | unknown | Net content is not established: no listing ties this GTIN to a weight. Wikipedia records an 84 g king-size Mars bar replaced by an 85 g two-bar pack, which is not evidence for this article. | ^wp-mars | | |
| 59 | 59 | | off-front-2015 | ingredients | unknown | No ingredient list for this pack has been read; the Open Food Facts record carries no ingredients text and only a 296 x 79 px front crop. | ^off | | |
| 60 | 60 | | off-front-2015 | nutrition | unknown | The pack's own nutrition panel has not been read; the values here are the composition published for the sibling twin pack and are declared secondary. | ^off-sibling | | |
| 61 | 61 | | | markets | unknown | No retailer listing was found for this GTIN. Open Food Facts tags the record Belgium and its front photo is the Dutch-language front, neither of which is market evidence, so country_of_sale is left empty. | ^off | | |
| 62 | 62 | | | relationships | unknown | Nothing found names the manufacturer, packer or the registrant of GS1 prefix 5000159; the 2008 Barcodepedia page's "produced in United Kingdom by Masterfoods" line was generated from the prefix. | ^bp2008 | | |
| 63 | 63 | <!--/research_gaps--> | |
| 64 | 64 | ||
| 65 | 65 | ## Research <!--research--> | |
| 66 | 66 | structure_version: 2 | |
| 67 | 67 | reviewed_on: 2026-09-14 | |
| 68 | 68 | note: Built from the wanted list. Identity rests on the Open Food Facts record and its front photograph; size, market, ingredients and nutrition of this pack remain open. | |
| 69 | 69 | <!--/research--> | |
| 70 | 70 | ||
| 71 | 71 | ## Meta <!--meta--> | |
| 72 | 72 | title: Mars 2 Pack King Size (5000159372251) | |
| 73 | 73 | description: The twin-bar king-size Mars pack behind barcode 5000159372251, with its Open Food Facts record, its 2015 wrapper photograph and the 2008 Barcodepedia entry. | |
| 74 | 74 | <!--/meta--> | |
| 75 | 75 | ||
| 76 | + | ## Images <!--images--> | |
| 77 | + | | asset | kind | source | licence | attribution | url | accessed | note | provider_entity_id | provider_image_id | source_image_url | download_url | retrieved_at | matched_barcode | match_method | match_confidence | original_width | original_height | stored_width | stored_height | upscaled | observation | | |
| 78 | + | | ------------------ | ----- | --------------- | ------------ | ---------------------------- | ----------------------------------------------------- | ---------- | ---- | ------------------ | ----------------- | ----------------------------------------------------------------------- | ------------ | ------------------------ | --------------- | ------------ | ---------------- | -------------- | --------------- | ------------ | ------------- | -------- | ----------- | | |
| 79 | + | | front-98066c4e.jpg | front | open-food-facts | cc-by-sa-3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5000159372251 | 2026-09-14 | | 5000159372251 | 1 | https://images.openfoodfacts.org/images/products/500/015/937/2251/1.jpg | | 2026-09-14T11:28:36.742Z | 5000159372251 | barcode | 1 | 296 | 79 | 800 | 214 | true | | | |
| 80 | + | <!--/images--> | |
| 81 | + | ||
| 76 | 82 | ## References <!--references--> | |
| 77 | 83 | | ref | url | title | accessed | publisher | kind | published | record_id | locator | licence | attribution | upstream | | |
| 78 | 84 | | ----------- | ----------------------------------------------------------------------------------------- | ------------------------------------------------------------ | ---------- | ------------------------------ | ----------- | ---------- | ------------- | -------------- | ------------ | ---------------------------- | -------- | | |
| 79 | 85 | | off | https://world.openfoodfacts.org/product/5000159372251 | Open Food Facts: Mars 2 Pack (5000159372251) | 2026-09-14 | Open Food Facts | catalogue | | 5000159372251 | | ODbL | Open Food Facts contributors | | | |
| 80 | 86 | | off-photo | https://images.openfoodfacts.org/images/products/500/015/937/2251/1.jpg | Front photograph of the wrapper, uploaded to Open Food Facts | 2026-09-14 | Open Food Facts | catalogue | 2015-02-06 | 5000159372251 | front, imgid 1 | CC BY-SA 3.0 | Open Food Facts contributors | | | |
| 81 | 87 | | off-sibling | https://world.openfoodfacts.org/product/5000159408301 | Open Food Facts: Mars (2x), 2 x 35 g = 70 g (5000159408301) | 2026-09-14 | Open Food Facts | catalogue | | 5000159408301 | | ODbL | Open Food Facts contributors | | | |
| 82 | 88 | | wp-mars | https://en.wikipedia.org/wiki/Mars_bar | Mars bar | 2026-09-14 | Wikipedia | publication | | | History, Sizes | CC BY-SA | Wikipedia contributors | | | |
| 83 | 89 | | bp2008 | https://web.archive.org/web/20081120000807/http://de.barcodepedia.com/5000159372251/mars- | Barcodepedia (2008): 5000159372251 - Mars | 2026-09-14 | Barcodepedia, Internet Archive | other | 2008-11-20 | | | | | | | |
| 84 | 90 | | ch-mwcuk | https://find-and-update.company-information.service.gov.uk/company/06649982 | MARS WRIGLEY CONFECTIONERY UK LIMITED overview | 2026-09-14 | Companies House | registry | | 06649982 | | | | | | |
| 85 | 91 | <!--/references--> | |
| 86 | 92 | ||
| 87 | 93 | ## About <!--about--> | |
| 88 | 94 | Mars 2 Pack King Size is the twin-bar king-size edition of the Mars bar, the caramel and nougat bar in milk chocolate that Mars, Incorporated has made since Forrest Mars Sr. first produced it in Slough in 1932.[^wp-mars] The only photograph of this barcode shows the black Mars livery with "2PACK" beside the logo and a corner flash reading "2PACK KING SIZE".[^off-photo] Open Food Facts holds the code as "Mars 2 Pack" with a Dutch-language front and neither an ingredient list nor a panel,[^off] and the 2006-2013 Barcodepedia recorded it in November 2008 as "Mars", described only as a "2er Pack".[^bp2008] | |
| 89 | 95 | ||
| 90 | 96 | Wikipedia's account of the bar's sizes has the 84 g king-size bar of 2008 replaced by an 85 g pack of two bars, sold as Mars Duo,[^wp-mars] which is the format this wrapper advertises; no source found gives this article its own weight, market or label, so those cells stay empty. The barcode sits under GS1 UK prefix 5000159, whose registrant no public source names; Mars Wrigley Confectionery UK Limited of Slough, the group's British confectionery company, is recorded as the derived prefix owner.[^ch-mwcuk] The composition shown is the one published for the current two-bar Mars pack and is declared secondary, not this pack's label.[^off-sibling] | |
| 91 | 97 | <!--/about--> |
Source of v1
# Mars 2 Pack King Size <!--product-->
## Identity <!--identity-->
gtin: 05000159372251
name: Mars 2 Pack King Size
family: family/mars-bar
default_observation: off-front-2015
summary: Twin-bar king-size edition of the Mars caramel and nougat bar, recorded on Open Food Facts as "Mars 2 Pack" and on the 2006-2013 Barcodepedia as a "2er Pack".
brand: brand/mars
category: category/10000045
last_seen: 2015-02-06
last_seen_note: Date of the only photograph of this pack on Open Food Facts; no current retail listing for this GTIN was found.
<!--/identity-->
## Relations <!--relations-->
| role | target | market | from | until | ended | status | source | note |
| ------------------- | ------------------------------------- | ------ | ---- | ----- | ----- | ------- | --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| brand_owner_at_sale | company/mars-incorporated | | | | | sourced | ^wp-mars | Wikipedia names Mars Inc. as the producer of the Mars bar. |
| gs1_prefix_owner | company/mars-wrigley-confectionery-uk | | | | | derived | ^ch-mwcuk | Prefix 5000159 is a GS1 UK prefix and no source names its registrant; targeted as the prefix-country confectionery company of the brand owner. The prefix predates its 2008 incorporation. |
<!--/relations-->
## Aliases <!--aliases-->
| name | type | locale | from | until |
| -------------- | ------ | ------ | ---- | ----- |
| Mars 2 Pack | name | en | | |
| Mars King Size | search | en | | |
<!--/aliases-->
## Observations <!--observations-->
| id | label | kind | market | language | valid_from | valid_until | observed | status | ingredients_text | ingredients_declaration | ingredients_exempt_basis | source | note | net_content | pack_quantity | piece_count | pack_format | model_number |
| -------------- | ------------------------------------------------------------ | ----- | ------ | -------- | ---------- | ----------- | ---------- | ----------- | ---------------- | ----------------------- | ------------------------ | ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------- | ------------- | ----------- | ----------- | ------------ |
| off-front-2015 | Front of the wrapper, photographed for Open Food Facts | label | | nl | | | 2015-02-06 | supported | | | | ^off-photo | Front only, 296 x 79 px: the black Mars livery with "2PACK" beside the logo and a corner flash reading "2PACK KING SIZE". No ingredient list, panel or net content is visible on it. | | 2 | | wrapper | |
| twin-pack-ref | Published composition of the Mars two-bar pack 5000159408301 | label | | de | | | 2026-09-14 | unconfirmed | | | | ^off-sibling | Not this article: the label of the current 2 x 35 g Mars twin pack sold in DE, FR, CH and ES, kept here as reference composition for the same bar. Its market and date do not apply to this pack. | | | | | |
<!--/observations-->
## Nutrition panels <!--nutrition_panels-->
| id | observation | label | basis | basis_state | basis_note | declaration | exempt_basis | source | note |
| ------- | ------------- | -------------------------------- | ----- | ----------- | ---------- | ----------- | ------------ | ------------ | ---------------------------------------------------------------------------------------------------------------------- |
| ref-100 | twin-pack-ref | Per 100 g, reference composition | 100 g | as_sold | | secondary | | ^off-sibling | Reference composition of the Mars bar taken from the twin pack 5000159408301; this pack's own panel has not been read. |
<!--/nutrition_panels-->
## Nutrition values <!--nutrition_values-->
| panel | nutrient | value | qualifier | printed_value | state | method | source | note |
| ------- | --------------- | ----- | --------- | ------------- | ----- | -------- | ------------ | ------------------------------------------------------------------------------- |
| ref-100 | energy_kj | 1887 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. |
| ref-100 | energy_kcal | 449 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. |
| ref-100 | fat_g | 17 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. |
| ref-100 | saturated_fat_g | 8.3 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. |
| ref-100 | carbohydrate_g | 70 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. |
| ref-100 | sugars_g | 62 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. |
| ref-100 | protein_g | 4 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. |
| ref-100 | salt_g | 0.41 | | | known | inferred | ^off-sibling | Carried over from the twin pack 5000159408301; not read from this pack's label. |
<!--/nutrition_values-->
## Research gaps <!--research_gaps-->
| observation | domain | state | detail | source |
| -------------- | ------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------ |
| | identity | unknown | Net content is not established: no listing ties this GTIN to a weight. Wikipedia records an 84 g king-size Mars bar replaced by an 85 g two-bar pack, which is not evidence for this article. | ^wp-mars |
| off-front-2015 | ingredients | unknown | No ingredient list for this pack has been read; the Open Food Facts record carries no ingredients text and only a 296 x 79 px front crop. | ^off |
| off-front-2015 | nutrition | unknown | The pack's own nutrition panel has not been read; the values here are the composition published for the sibling twin pack and are declared secondary. | ^off-sibling |
| | markets | unknown | No retailer listing was found for this GTIN. Open Food Facts tags the record Belgium and its front photo is the Dutch-language front, neither of which is market evidence, so country_of_sale is left empty. | ^off |
| | relationships | unknown | Nothing found names the manufacturer, packer or the registrant of GS1 prefix 5000159; the 2008 Barcodepedia page's "produced in United Kingdom by Masterfoods" line was generated from the prefix. | ^bp2008 |
<!--/research_gaps-->
## Research <!--research-->
structure_version: 2
reviewed_on: 2026-09-14
note: Built from the wanted list. Identity rests on the Open Food Facts record and its front photograph; size, market, ingredients and nutrition of this pack remain open.
<!--/research-->
## Meta <!--meta-->
title: Mars 2 Pack King Size (5000159372251)
description: The twin-bar king-size Mars pack behind barcode 5000159372251, with its Open Food Facts record, its 2015 wrapper photograph and the 2008 Barcodepedia entry.
<!--/meta-->
## References <!--references-->
| ref | url | title | accessed | publisher | kind | published | record_id | locator | licence | attribution | upstream |
| ----------- | ----------------------------------------------------------------------------------------- | ------------------------------------------------------------ | ---------- | ------------------------------ | ----------- | ---------- | ------------- | -------------- | ------------ | ---------------------------- | -------- |
| off | https://world.openfoodfacts.org/product/5000159372251 | Open Food Facts: Mars 2 Pack (5000159372251) | 2026-09-14 | Open Food Facts | catalogue | | 5000159372251 | | ODbL | Open Food Facts contributors | |
| off-photo | https://images.openfoodfacts.org/images/products/500/015/937/2251/1.jpg | Front photograph of the wrapper, uploaded to Open Food Facts | 2026-09-14 | Open Food Facts | catalogue | 2015-02-06 | 5000159372251 | front, imgid 1 | CC BY-SA 3.0 | Open Food Facts contributors | |
| off-sibling | https://world.openfoodfacts.org/product/5000159408301 | Open Food Facts: Mars (2x), 2 x 35 g = 70 g (5000159408301) | 2026-09-14 | Open Food Facts | catalogue | | 5000159408301 | | ODbL | Open Food Facts contributors | |
| wp-mars | https://en.wikipedia.org/wiki/Mars_bar | Mars bar | 2026-09-14 | Wikipedia | publication | | | History, Sizes | CC BY-SA | Wikipedia contributors | |
| bp2008 | https://web.archive.org/web/20081120000807/http://de.barcodepedia.com/5000159372251/mars- | Barcodepedia (2008): 5000159372251 - Mars | 2026-09-14 | Barcodepedia, Internet Archive | other | 2008-11-20 | | | | | |
| ch-mwcuk | https://find-and-update.company-information.service.gov.uk/company/06649982 | MARS WRIGLEY CONFECTIONERY UK LIMITED overview | 2026-09-14 | Companies House | registry | | 06649982 | | | | |
<!--/references-->
## About <!--about-->
Mars 2 Pack King Size is the twin-bar king-size edition of the Mars bar, the caramel and nougat bar in milk chocolate that Mars, Incorporated has made since Forrest Mars Sr. first produced it in Slough in 1932.[^wp-mars] The only photograph of this barcode shows the black Mars livery with "2PACK" beside the logo and a corner flash reading "2PACK KING SIZE".[^off-photo] Open Food Facts holds the code as "Mars 2 Pack" with a Dutch-language front and neither an ingredient list nor a panel,[^off] and the 2006-2013 Barcodepedia recorded it in November 2008 as "Mars", described only as a "2er Pack".[^bp2008]
Wikipedia's account of the bar's sizes has the 84 g king-size bar of 2008 replaced by an 85 g pack of two bars, sold as Mars Duo,[^wp-mars] which is the format this wrapper advertises; no source found gives this article its own weight, market or label, so those cells stay empty. The barcode sits under GS1 UK prefix 5000159, whose registrant no public source names; Mars Wrigley Confectionery UK Limited of Slough, the group's British confectionery company, is recorded as the derived prefix owner.[^ch-mwcuk] The composition shown is the one published for the current two-bar Mars pack and is declared secondary, not this pack's label.[^off-sibling]
<!--/about-->