{"product_id":"engino-discovering-stem-mechanics-gears-worm-drives-12-model-toy-machine-brick-building-set-snap-fit-construction-experiment-theory-kids-9","title":"Engino Discovering STEM Mechanics: Gears \u0026 Worm Drives 12-Model Building Set, 112 Pieces","description":"\u003cp\u003eThis 112-piece building set lets kids construct up to 12 different working models while learning how mechanical systems actually move. Snap-fit construction makes assembly straightforward, and each build demonstrates real principles behind gears, screws, and worm drives, like how gears can reduce or increase speed and change force, how worm drives cut rotational speed way down, and how screws turn rotational motion into linear motion while boosting force. Rather than static models, these are functioning machines kids build and test, including an experimental crane, a gearbox, a carousel, a helicopter, a screw press, and a crane with a rotating arm. Easy-to-follow instructions guide the builds from start to finish.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e112 pieces build up to 12 different working models, from a gearbox to a helicopter\u003c\/li\u003e \u003cli\u003eSnap-fit construction makes assembly easy without extra tools\u003c\/li\u003e \u003cli\u003eExplores how gears change speed and force, how worm drives reduce rotational speed, and how screws convert rotational motion into linear motion\u003c\/li\u003e \u003cli\u003eBuilds working mechanisms, not just static models, for hands-on experiment-theory learning\u003c\/li\u003e \u003cli\u003eDesigned for kids ages 9+\u003c\/li\u003e \u003c\/ul\u003e","brand":"Flat River Group","offers":[{"title":"Default Title","offer_id":52302251589848,"sku":"G5291664004243","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0675\/0476\/7192\/files\/vu1vbxgj68rg5ajhhogn.jpg?v=1787674135","url":"https:\/\/www.toysrus.com\/products\/engino-discovering-stem-mechanics-gears-worm-drives-12-model-toy-machine-brick-building-set-snap-fit-construction-experiment-theory-kids-9","provider":"Toys\"R\"Us","version":"1.0","type":"link"}