{"product_id":"rokr-thermo-engine-mechanical-3d-puzzle","title":"ROKR Thermo Engine Mechanical 3D Puzzle","description":"\u003cp\u003eBuild a compact mechanical model inspired by a classic single-cylinder engine. The ROKR Thermo Engine brings its moving piston, rotating flywheel and rear pulley to life, with an amber light that simulates combustion.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e58 pieces\u003c\/li\u003e\n\u003cli\u003eAssembly time: around 1 hour\u003c\/li\u003e\n\u003cli\u003eDifficulty: 2\/5\u003c\/li\u003e\n\u003cli\u003eFinished size: 55 × 53 × 118 mm\u003c\/li\u003e\n\u003cli\u003eCompatible with ROKR Industrial City models; connectors are sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eA short, screen-free mechanical build that makes an interactive display for curious makers.\u003c\/p\u003e","brand":"ROBOTIME","offers":[{"title":"Default","offer_id":58885512987005,"sku":"CGM03","price":20.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/4787\/5965\/files\/Screenshot_2026-10-12_at_16.32.36.png?v=1791819193","url":"https:\/\/momolab.co.uk\/products\/rokr-thermo-engine-mechanical-3d-puzzle","provider":"MOMO.Lab","version":"1.0","type":"link"}