{"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":"2026-10-23T03:10:43+00:00","price":"203.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0HFRS77RS?maas=maas_adg_api_579967245749788136_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB91ff4ee529c02fe4ce2615b2925f50e7_fbc012d1e556&aa_adgroupid=1ce307ee34d91faf8e310267db2a5f98_PBSEP_!!!affid!!!_118045_&aa_creativeid=aff69xSFgtCgTQT4azJKYuej7NL7UrQpy6O7qqo85wZjiuw_c"}],"product":{"brand":"FlexiSpot UK","evidence_url":"https://mainbuyer.com/evidence/products/flexispot-ergox-ergonomic-office-chair-with-footrest-5d-lumbar-support-3d-headrest-armrests-adjustable-seat-depth-breathable-mesh-and-130kg-capac-b0hfrs77rs/prices","gtin":null,"id":19776,"model_number":null,"name":"FLEXISPOT ErgoX Ergonomic Office Chair with Footrest,5D Lumbar Support, 3D Headrest & Armrests, Adjustable Seat Depth, Breathable Mesh and 130kg Capac","product_url":"https://mainbuyer.com/product/flexispot-ergox-ergonomic-office-chair-with-footrest-5d-lumbar-support-3d-headrest-armrests-adjustable-seat-depth-breathable-mesh-and-130kg-capac-b0hfrs77rs","urn":"MB-AWIN-GB-B0HFRS77RS"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"203.99","historical_low":"203.99","last_observed_at":"2026-10-23T03:10:43+00:00","low_30d":"203.99","low_90d":"203.99","median_price":"203.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-10-23T03:10:43+00:00"}}