{"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":"2026-09-17T12:26:30+00:00","price":"539.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0H3ND59B2?maas=maas_adg_api_584985215261907273_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBd3060ec4b5db4ac5d262154a04c9e8f1&aa_adgroupid=5d9c3754705e41513a794dcaea8eb041_PBSEP_!!!affid!!!_118045_&aa_creativeid=59e9rx5NvsEPbKaQNVKds61FlgsSx2BLEvv5bB25Nx9H3Xg_c"}],"product":{"brand":"SIHOO UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/sihoo-doro-c300-ergonomic-office-chair-with-ultra-soft-3d-armrests-dynamic-lumbar-support-for-home-office-chair-adjustable-backrest-desk-chair-2-pac-b0h3nd59b2/prices","gtin":null,"id":5961,"model_number":null,"name":"SIHOO Doro C300 Ergonomic Office Chair with Ultra Soft 3D Armrests, Dynamic Lumbar Support for Home Office Chair, Adjustable Backrest Desk Chair-2 Pac","product_url":"https://mail.mainbuyer.com/product/sihoo-doro-c300-ergonomic-office-chair-with-ultra-soft-3d-armrests-dynamic-lumbar-support-for-home-office-chair-adjustable-backrest-desk-chair-2-pac-b0h3nd59b2","urn":"MB-AWIN-GB-B0H3ND59B2"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"539.99","historical_low":"539.99","last_observed_at":"2026-09-17T12:26:30+00:00","low_30d":"539.99","low_90d":"539.99","median_price":"539.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:26:30+00:00"}}