{"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":"2026-10-23T03:10:47+00:00","price":"251.58","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0H5H8FVH4?maas=maas_adg_api_579967245749788136_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB91ff4ee529c02fe4ce2615b2925f50e7_76f9340a470b&aa_adgroupid=fb6845d8daf74be2b7521c4cd1a1672b_PBSEP_!!!affid!!!_118045_&aa_creativeid=a4f8WzvtrVmZtTs6ecjGKjjZjYiBBFisaABHE2EGm28ZFVw_c"}],"product":{"brand":"FlexiSpot UK","evidence_url":"https://mainbuyer.com/evidence/products/flexispot-desk-office-chair-big-and-tall-pu-leather-ergonomic-office-chair-600-lbs-adjustable-high-back-computer-chair-with-adjustable-lumbar-suppor-b0h5h8fvh4/prices","gtin":null,"id":19914,"model_number":null,"name":"FLEXISPOT Desk Office Chair, Big and Tall PU Leather Ergonomic Office Chair, 600 lbs Adjustable High Back Computer Chair with Adjustable Lumbar Suppor","product_url":"https://mainbuyer.com/product/flexispot-desk-office-chair-big-and-tall-pu-leather-ergonomic-office-chair-600-lbs-adjustable-high-back-computer-chair-with-adjustable-lumbar-suppor-b0h5h8fvh4","urn":"MB-AWIN-GB-B0H5H8FVH4"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"251.58","historical_low":"251.58","last_observed_at":"2026-10-23T03:10:47+00:00","low_30d":"251.58","low_90d":"251.58","median_price":"251.58","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-10-23T03:10:47+00:00"}}