{"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":"186.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0F8HRFV2V?maas=maas_adg_api_579967245749788136_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB91ff4ee529c02fe4ce2615b2925f50e7_8801765d4684&aa_adgroupid=3314b3c5fb78756b038ab926d9fa8b64_PBSEP_!!!affid!!!_118045_&aa_creativeid=206fLRJQcM32W0Xmrov9jyd2faroFrqJe4_bm0edaAf_a82Y4_c"}],"product":{"brand":"FlexiSpot UK","evidence_url":"https://mainbuyer.com/evidence/products/flexispot-ergox-ergonomic-office-chair-with-3d-armrests-headrest-mesh-desk-chair-with-5d-lumbar-support-seat-depth-adjustment-task-chair-with-foot-b0f8hrfv2v/prices","gtin":null,"id":19620,"model_number":null,"name":"FLEXISPOT ErgoX Ergonomic Office Chair With 3D Armrests & Headrest Mesh Desk Chair with 5D Lumbar Support & Seat Depth Adjustment Task Chair with Foot","product_url":"https://mainbuyer.com/product/flexispot-ergox-ergonomic-office-chair-with-3d-armrests-headrest-mesh-desk-chair-with-5d-lumbar-support-seat-depth-adjustment-task-chair-with-foot-b0f8hrfv2v","urn":"MB-AWIN-GB-B0F8HRFV2V"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"186.99","historical_low":"186.99","last_observed_at":"2026-10-23T03:10:34+00:00","low_30d":"186.99","low_90d":"186.99","median_price":"186.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-10-23T03:10:34+00:00"}}