{"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":"159.98","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0GK18R4DF?maas=maas_adg_api_579967245749788136_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB91ff4ee529c02fe4ce2615b2925f50e7_c4463dd1b20d&aa_adgroupid=97bd6471aa96dbfe8bf80b621138b5cb_PBSEP_!!!affid!!!_118045_&aa_creativeid=c61c_aXv4cLPIPgtkBj9d15MvXupIYBlZT1cCDRKZw0sDLBA_c"}],"product":{"brand":"FlexiSpot UK","evidence_url":"https://mainbuyer.com/evidence/products/flexispot-ergox-ergonomic-office-chair-desk-chair-3d-armrests-3d-headrest-5d-adjustable-backrest-breathable-seat-maximum-load-136-kg-work-chair-b0gk18r4df/prices","gtin":null,"id":19718,"model_number":null,"name":"FLEXISPOT ErgoX Ergonomic Office Chair, Desk Chair, 3D Armrests, 3D Headrest, 5D Adjustable Backrest, Breathable Seat, Maximum Load 136 kg, Work Chair","product_url":"https://mainbuyer.com/product/flexispot-ergox-ergonomic-office-chair-desk-chair-3d-armrests-3d-headrest-5d-adjustable-backrest-breathable-seat-maximum-load-136-kg-work-chair-b0gk18r4df","urn":"MB-AWIN-GB-B0GK18R4DF"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"159.98","historical_low":"159.98","last_observed_at":"2026-10-23T03:10:37+00:00","low_30d":"159.98","low_90d":"159.98","median_price":"159.98","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-10-23T03:10:37+00:00"}}