{"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":"2026-09-17T12:30:30+00:00","price":"12.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0B74JNCTG?maas=maas_adg_api_579533076337607528_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB5b30ceffefb0240d89c2867c65644ce7&aa_adgroupid=86774e33788531196412a4ca45c443c4_PBSEP_!!!affid!!!_118045_&aa_creativeid=7549cG8gu5p4f0_bCir84z5ATUSb38Ohj5brFRsVnyITKVr8_c"}],"product":{"brand":"GANCUBE UK","evidence_url":"https://mainbuyer.com/evidence/products/monster-go-magnetic-3x3-speed-cube-mg-edu-educational-classic-magic-cube-with-48-magnets-ai-tutorial-for-kids-beginners-b0b74jnctg/prices","gtin":null,"id":12796,"model_number":null,"name":"Monster Go Magnetic 3x3 Speed Cube, MG EDU Educational Classic Magic Cube with 48 Magnets, AI Tutorial for Kids Beginners","product_url":"https://mainbuyer.com/product/monster-go-magnetic-3x3-speed-cube-mg-edu-educational-classic-magic-cube-with-48-magnets-ai-tutorial-for-kids-beginners-b0b74jnctg","urn":"MB-AWIN-GB-B0B74JNCTG"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"12.99","historical_low":"12.99","last_observed_at":"2026-09-17T12:30:30+00:00","low_30d":"12.99","low_90d":"12.99","median_price":"12.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-09-17T12:30:30+00:00"}}