{"title":"Plastic Marble Runs","description":"Plastic marble runs combine hands-on assembly with a working track you can use after the build. Compare route design, difficulty, finished dimensions, assembly time, and powered features to choose the kind of project you want.","products":[{"product_id":"the-future-city-marble-run-mechanical-3d-puzzle","title":"The Future City Marble Run Mechanical 3D Puzzle","description":"Rokr Future City is a 140-piece marble run and mechanical 3D puzzle. Built from ABS and PC, it delivers dynamic LED lighting and complex multi-level tracks.","brand":"Rokr","offers":[{"title":"Default Title","offer_id":53382446088520,"sku":"MR02S","price":273.0,"currency_code":"PLN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7298\/7976\/files\/MR02S.webp?v=1782401593"},{"product_id":"alchemy-city-marble-run-mechanical-3d-puzzle","title":"Alchemy City Marble Run Mechanical 3D Puzzle","description":"Alchemy City is a 247-piece ROKR mechanical 3D puzzle from the Marble’s Parallel World series, rated medium difficulty with an estimated two-hour build. Once assembled, it measures 180 × 77 × 231 mm. This construction kit combines a powered marble run, moving mechanisms, and integrated LED lighting in a compact vertical format.","brand":"Rokr","offers":[{"title":"Default Title","offer_id":53429630206280,"sku":"MR04S","price":282.0,"currency_code":"PLN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7298\/7976\/files\/MR04S.webp?v=1788843096"},{"product_id":"hip-hop-street-marble-run-mechanical-3d-puzzle","title":"Hip-Hop Street Marble Run Mechanical 3D Puzzle","description":"Hip-Hop Street is a 134-piece ROKR 3D puzzle from the Marble’s Parallel World series. This medium-difficulty DIY model combines a working marble run with moving parts and LED lighting. Once assembled, the powered lift keeps the marbles cycling through the track, while the street-themed module serves as the finished display.","brand":"Rokr","offers":[{"title":"Default Title","offer_id":53429631287624,"sku":"MR03S","price":294.0,"currency_code":"PLN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7298\/7976\/files\/MR03S.webp?v=1788854168"},{"product_id":"the-last-city-marble-run-mechanical-3d-puzzle","title":"The Last City Marble Run Mechanical 3D Puzzle","description":"The Last City is a Rokr 3D puzzle that builds into a working marble run. The model kit features a miniature street above a factory scene with pipes, traffic signs, and a small fan. Its layered track sits inside a black display frame with ribbed sides.","brand":"Rokr","offers":[{"title":"Default Title","offer_id":53429634761032,"sku":"MR01S","price":273.0,"currency_code":"PLN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7298\/7976\/files\/MR01S.webp?v=1789025244"},{"product_id":"mars-outpost-marble-run-mechanical-3d-puzzle","title":"Mars Outpost Marble Run Mechanical 3D Puzzle","description":"Mars Outpost is a ROKR Parallel World 3D Puzzle with a compact, vertical Mars-base layout. The 194-piece construction kit is rated medium difficulty and takes about two hours to assemble. Finished size is 180 × 77 × 231 mm, giving the completed model a relatively narrow footprint for a desk, shelf, or display cabinet.","brand":"Rokr","offers":[{"title":"Default Title","offer_id":53976511480136,"sku":"MR05S","price":281.0,"currency_code":"PLN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7298\/7976\/files\/MR05S.webp?v=1788600712"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7298\/7976\/collections\/1-banner-plastic-marble-runs.webp?v=1787915717","url":"https:\/\/myhobby.day\/sv-se\/collections\/plastic-marble-runs.oembed","provider":"My Hobby Day","version":"1.0","type":"link"}