{"dataset":"MainBuyer UK price observations","market":"GB","market_name":"United Kingdom","methodology":"Each observation is stored only when MainBuyer has a timestamped checked retailer offer. Missing days are not interpolated or invented. Historical low, high and median figures use recorded in-stock observations only.","observations":[{"currency":"GBP","in_stock":true,"observed_at":"2026-09-17T12:29:01+00:00","price":"13.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0F9YH7VTF?maas=maas_adg_api_588052515283475030_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBf3f02c3e232dee00843a38531c9c53d5&aa_adgroupid=8eebdffaaf68aedfa2b3b20ff983ef1f_PBSEP_!!!affid!!!_118045_&aa_creativeid=212ftl6fjDsu7Neer6YZWjG_a3VePdQANypwhfuSZM_abk1FA_c"}],"product":{"brand":"pluseight UK","evidence_url":"https://www.mainbuyer.com/evidence/products/stainless-steel-cups-spill-proof-350ml-12oz-water-bottle-with-twist-lids-silicone-straw-reusable-double-walled-water-bottle-easy-to-clean-bow-35-b0f9yh7vtf/prices","gtin":null,"id":10439,"model_number":null,"name":"Stainless Steel Cups Spill Proof, 350ml/12oz Water Bottle with Twist Lids & Silicone Straw, Reusable Double Walled Water Bottle, Easy to Clean(Bow, 35","product_url":"https://www.mainbuyer.com/product/stainless-steel-cups-spill-proof-350ml-12oz-water-bottle-with-twist-lids-silicone-straw-reusable-double-walled-water-bottle-easy-to-clean-bow-35-b0f9yh7vtf","urn":"MB-AWIN-GB-B0F9YH7VTF"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"13.99","historical_low":"13.99","last_observed_at":"2026-09-17T12:29:01+00:00","low_30d":"13.99","low_90d":"13.99","median_price":"13.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:29:01+00:00"}}