{"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":"2026-09-17T12:28:59+00:00","price":"22.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B09K75L2L1?maas=maas_adg_api_591514803013323719_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB7bce50449938388e7e7f54caf5a0996f&aa_adgroupid=750f81261ba8bfd27f0ce60d9e07e4fa_PBSEP_!!!affid!!!_118045_&aa_creativeid=90efbrYNrYJee7Z0jOR9dGakZXbWX4GbFUcZM25UDQSB97I_c"}],"product":{"brand":"ESR UK","evidence_url":"https://mail.mainbuyer.com/evidence/products/esr-upgraded-for-magsafe-wallet-5-card-holder-rfid-blocking-b09k75l2l1/prices","gtin":null,"id":10359,"model_number":null,"name":"ESR Upgraded for MagSafe Wallet, 5 Card Holder, RFID Blocking","product_url":"https://mail.mainbuyer.com/product/esr-upgraded-for-magsafe-wallet-5-card-holder-rfid-blocking-b09k75l2l1","urn":"MB-AWIN-GB-B09K75L2L1"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"22.99","historical_low":"22.99","last_observed_at":"2026-09-17T12:28:59+00:00","low_30d":"22.99","low_90d":"22.99","median_price":"22.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:28:59+00:00"}}