{"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":"2026-10-23T03:10:37+00:00","price":"219.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0FVXT9TQN?maas=maas_adg_api_579967245749788136_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB91ff4ee529c02fe4ce2615b2925f50e7_c4463dd1b20d&aa_adgroupid=1cc475f1fa3ca968003516e0897dc470_PBSEP_!!!affid!!!_118045_&aa_creativeid=54a7khuO_bunO9DBs7IYQmZLlaAKh4mi4K7aZPW4INHJgxoM_c"}],"product":{"brand":"FlexiSpot UK","evidence_url":"https://mainbuyer.com/evidence/products/flexispot-ergox-ergonomic-office-chair-with-footrest-desk-chair-with-3d-armrests-3d-headrest-5d-adjustable-backrest-breathable-seat-maximum-load-b0fvxt9tqn/prices","gtin":null,"id":19713,"model_number":null,"name":"FLEXISPOT ErgoX Ergonomic Office Chair with Footrest, Desk Chair with 3D Armrests, 3D Headrest, 5D Adjustable Backrest, Breathable Seat, Maximum Load","product_url":"https://mainbuyer.com/product/flexispot-ergox-ergonomic-office-chair-with-footrest-desk-chair-with-3d-armrests-3d-headrest-5d-adjustable-backrest-breathable-seat-maximum-load-b0fvxt9tqn","urn":"MB-AWIN-GB-B0FVXT9TQN"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"219.99","historical_low":"219.99","last_observed_at":"2026-10-23T03:10:37+00:00","low_30d":"219.99","low_90d":"219.99","median_price":"219.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-10-23T03:10:37+00:00"}}