{"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":"305.97","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0GF7ZP6C1?maas=maas_adg_api_579967245749788136_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB91ff4ee529c02fe4ce2615b2925f50e7_8801765d4684&aa_adgroupid=b1550826f91ddac65236fcdbc52caacb_PBSEP_!!!affid!!!_118045_&aa_creativeid=f6f1UvC1eg56dmS8mk7zvndTZz4iStvUTE_bhXQi52cPuy5M_c"}],"product":{"brand":"FlexiSpot UK","evidence_url":"https://mainbuyer.com/evidence/products/flexispot-ergox-max-ergonomic-office-chair-heavy-duty-mesh-desk-chair-with-4d-headrest-5d-armrests-adjustable-backrest-seat-depth-swivel-task-ch-b0gf7zp6c1/prices","gtin":null,"id":19623,"model_number":null,"name":"FLEXISPOT ErgoX Max Ergonomic Office Chair, Heavy Duty Mesh Desk Chair with 4D Headrest, 5D Armrests, Adjustable Backrest & Seat Depth, Swivel Task Ch","product_url":"https://mainbuyer.com/product/flexispot-ergox-max-ergonomic-office-chair-heavy-duty-mesh-desk-chair-with-4d-headrest-5d-armrests-adjustable-backrest-seat-depth-swivel-task-ch-b0gf7zp6c1","urn":"MB-AWIN-GB-B0GF7ZP6C1"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"305.97","historical_low":"305.97","last_observed_at":"2026-10-23T03:10:34+00:00","low_30d":"305.97","low_90d":"305.97","median_price":"305.97","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-10-23T03:10:34+00:00"}}