{"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":"2026-10-23T03:10:27+00:00","price":"249.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0HFRH2M8G?maas=maas_adg_api_579967245749788136_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB91ff4ee529c02fe4ce2615b2925f50e7_5ac6cdd18d2e&aa_adgroupid=5cd79f5fb2c20757f3bd0340632f7819_PBSEP_!!!affid!!!_118045_&aa_creativeid=ae17ULkXRQZzRnsIPQg_aDDlPPMgbm7j9YAq0_a5Bro_b3ps3s_c"}],"product":{"brand":"FlexiSpot UK","evidence_url":"https://mainbuyer.com/evidence/products/flexispot-bs8-pro-ergonomic-office-chair-desk-chair-with-dual-wing-lumbar-support-3d-headrest-3d-armrests-adjustable-seat-depth-3-level-tilt-h-b0hfrh2m8g/prices","gtin":null,"id":19509,"model_number":null,"name":"FLEXISPOT BS8 PRO Ergonomic Office Chair, Desk Chair with Dual Wing Lumbar Support, 3D Headrest, 3D Armrests & Adjustable Seat Depth, 3-Level Tilt & H","product_url":"https://mainbuyer.com/product/flexispot-bs8-pro-ergonomic-office-chair-desk-chair-with-dual-wing-lumbar-support-3d-headrest-3d-armrests-adjustable-seat-depth-3-level-tilt-h-b0hfrh2m8g","urn":"MB-AWIN-GB-B0HFRH2M8G"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"249.99","historical_low":"249.99","last_observed_at":"2026-10-23T03:10:27+00:00","low_30d":"249.99","low_90d":"249.99","median_price":"249.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-10-23T03:10:27+00:00"}}