{"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":"2026-10-23T03:10:34+00:00","price":"288.94","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0D4CH47P8?maas=maas_adg_api_579967245749788136_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB91ff4ee529c02fe4ce2615b2925f50e7_8801765d4684&aa_adgroupid=cf2dba7d1949bdeaeb558ebf3a6cabfd_PBSEP_!!!affid!!!_118045_&aa_creativeid=b0285C9W_a1v5ZIGpk3mEVaB6OFslQEZcnJgcv1iSfZ_bL_a4I_c"}],"product":{"brand":"FlexiSpot UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/flexispot-ergox-pro-ergonomic-office-chair-executive-mesh-desk-chair-with-height-adjustment-4d-headrest-7d-armrests-5d-lumbar-support-swivel-tas-b0d4ch47p8/prices","gtin":null,"id":19618,"model_number":null,"name":"FLEXISPOT ErgoX Pro Ergonomic Office Chair, Executive Mesh Desk Chair with Height Adjustment, 4D Headrest, 7D Armrests & 5D Lumbar Support, Swivel Tas","product_url":"https://mail.mainbuyer.com/product/flexispot-ergox-pro-ergonomic-office-chair-executive-mesh-desk-chair-with-height-adjustment-4d-headrest-7d-armrests-5d-lumbar-support-swivel-tas-b0d4ch47p8","urn":"MB-AWIN-GB-B0D4CH47P8"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"288.94","historical_low":"288.94","last_observed_at":"2026-10-23T03:10:34+00:00","low_30d":"288.94","low_90d":"288.94","median_price":"288.94","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-10-23T03:10:34+00:00"}}