{"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":"2026-09-17T12:29:18+00:00","price":"279.96","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0C3TNC785?maas=maas_adg_api_584985215261907273_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBd3060ec4b5db4ac5d262154a04c9e8f1&aa_adgroupid=c6451d9b2588f5a641d17b2b77002a23_PBSEP_!!!affid!!!_118045_&aa_creativeid=e7d5_asHotPpkHPLvFJFTr7_adNLZIVtXWeobdu2tHItPhNSs_c"}],"product":{"brand":"SIHOO UK","evidence_url":"https://mainbuyer.com/evidence/products/sihoo-doro-c300-ergonomic-office-chair-dynamic-lumbar-support-grey-b0c3tnc785/prices","gtin":null,"id":10971,"model_number":null,"name":"SIHOO Doro C300 Ergonomic Office Chair, Dynamic Lumbar Support, Grey","product_url":"https://mainbuyer.com/product/sihoo-doro-c300-ergonomic-office-chair-dynamic-lumbar-support-grey-b0c3tnc785","urn":"MB-AWIN-GB-B0C3TNC785"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"279.96","historical_low":"279.96","last_observed_at":"2026-09-17T12:29:18+00:00","low_30d":"279.96","low_90d":"279.96","median_price":"279.96","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:29:18+00:00"}}