{"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":"2026-09-17T12:26:07+00:00","price":"27.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B07WZFM4GW?maas=maas_adg_api_578959225498599130_static_12_45&ref_=aa_maas&tag=maas&aa_campaignid=efbfcc365ad47b330aca5bdc3717ccb0&aa_adgroupid=b8331983889fb7c181cb5903775613e8_PBSEP_!!!affid!!!_118045_&aa_creativeid=9817DZPrKSvyX4qbfytWis4IfN5mMJ1e_a_aqGgum1R9PFlCg_c"}],"product":{"brand":"GCurtain_UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/stainless-steel-wine-topper-stoppers-wine-saver-with-silicone-triangular-wine-bottle-stopper-sliver-b07wzfm4gw/prices","gtin":null,"id":5391,"model_number":null,"name":"Stainless Steel Wine Topper Stoppers, Wine Saver with Silicone, Triangular Wine Bottle Stopper, Sliver","product_url":"https://mail.mainbuyer.com/product/stainless-steel-wine-topper-stoppers-wine-saver-with-silicone-triangular-wine-bottle-stopper-sliver-b07wzfm4gw","urn":"MB-AWIN-GB-B07WZFM4GW"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"27.99","historical_low":"27.99","last_observed_at":"2026-09-17T12:26:07+00:00","low_30d":"27.99","low_90d":"27.99","median_price":"27.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:26:07+00:00"}}