{"product_id":"knex-marble-coaster-run-with-motor-504-piece-stem-building-set-for-ages-8","title":"K'NEX Marble Coaster Run with Motor — 504-Piece STEM Building Set for Ages 8+","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThis 504-piece K'NEX Marble Coaster Run with Motor invites curious builders to assemble a fully functional marble coaster. The battery-powered motor adds motion to every twist, while the blue and yellow pieces create a striking display that fits a game room, classroom corner, or office space.\u003c\/p\u003e\n\u003ch3\u003eThree levels of building\u003c\/h3\u003e\n\u003cp\u003eThe kit includes three building levels, letting beginners start with a simple layout and progress to more complex designs. This growth path supports ongoing challenge and keeps the experience fresh as skills develop.\u003c\/p\u003e\n\u003ch3\u003eWhat’s in the set\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMore than 500 pieces including 3 accordion tubes, a see-saw marble scoop, and a bankshot bounce pad\u003c\/li\u003e\n  \u003cli\u003eBattery-powered motor to drive the marble along the track\u003c\/li\u003e\n  \u003cli\u003e11 feet of spiraling coaster track for dramatic turns\u003c\/li\u003e\n  \u003cli\u003eTemplates that guide beginners and empower experienced builders\u003c\/li\u003e\n  \u003cli\u003eBlue and yellow components that provide a bold visual appeal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePlay and learning value\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHands-on engineering concepts come alive as the marble moves and triggers responses\u003c\/li\u003e\n  \u003cli\u003eFine motor practice and spatial reasoning while snapping pieces together\u003c\/li\u003e\n  \u003cli\u003eExploration of cause-and-effect through chained reactions and motion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eReal-life use ideas include setting up a dedicated play or display area, hosting quick build-and-test sessions with family or friends, and expanding play by integrating with other KNEX sets. The motorized movement adds a kinetic dimension that makes the coaster feel like a mini roller coaster at home, while the bold color palette helps it stand out in any room.\u003c\/p\u003e\n\u003cp\u003eNote that experiences may vary by child and setting; this kit offers possibilities for creativity and learning rather than guaranteed outcomes. When you’re ready for a new challenge, you can extend play by swapping templates, adding more track, or creating your own custom layouts.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What ages is this set suitable for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Ages 8 and up, with builds that scale from beginner to more complex templates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it include a motor?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, a battery-powered motor drives movement along the coaster tracks.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"K'NEX","offers":[{"title":"Default Title","offer_id":46526455513287,"sku":"B0BPK1196F","price":89.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/2355\/7319\/files\/knex-marble-coaster-run-motor-assembly.jpg?v=1778426541","url":"https:\/\/toyterrax.com\/products\/knex-marble-coaster-run-with-motor-504-piece-stem-building-set-for-ages-8","provider":"ToyTerrax","version":"1.0","type":"link"}