{"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":"2026-09-17T12:27:21+00:00","price":"129.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0HH8GL1Z3?maas=maas_adg_api_584985215261907273_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBd3060ec4b5db4ac5d262154a04c9e8f1&aa_adgroupid=da4765fd3818304e6688283fe0a97060_PBSEP_!!!affid!!!_118045_&aa_creativeid=c174NOIpG6ebGW4MHJgtjxdy3njQB8PNtfiEMcDwUIX47uk_c"}],"product":{"brand":"SIHOO UK","evidence_url":"https://www.mainbuyer.com/evidence/products/sihoo-m102c-ergonomic-mesh-office-chair-3d-armrests-white-b0hh8gl1z3/prices","gtin":null,"id":7389,"model_number":null,"name":"SIHOO M102C Ergonomic Mesh Office Chair, 3D Armrests, White","product_url":"https://www.mainbuyer.com/product/sihoo-m102c-ergonomic-mesh-office-chair-3d-armrests-white-b0hh8gl1z3","urn":"MB-AWIN-GB-B0HH8GL1Z3"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"129.99","historical_low":"129.99","last_observed_at":"2026-09-17T12:27:21+00:00","low_30d":"129.99","low_90d":"129.99","median_price":"129.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:27:21+00:00"}}