--- product_id: 543908803 title: "K'NEX - Marble Coaster Run with Motor‚ 504 Pieces, STEM Building, Kid Construction Set‚ Ages 8+" brand: "k'nex" price: "¥24590" currency: JPY in_stock: true category: "K'nex" url: https://www.desertcart.jp/products/543908803-knex-marble-coaster-run-with-motor-504-pieces-stem-building store_origin: JP region: Japan --- # 11 feet spiraling coaster track 504 precision pieces Battery-powered motorized action K'NEX - Marble Coaster Run with Motor‚ 504 Pieces, STEM Building, Kid Construction Set‚ Ages 8+ **Brand:** k'nex **Price:** ¥24590 **Availability:** ✅ In Stock ## Summary > 🎢 Build. Power. Thrill. Elevate your play with every twist and turn! ## Quick Answers - **What is this?** K'NEX - Marble Coaster Run with Motor‚ 504 Pieces, STEM Building, Kid Construction Set‚ Ages 8+ by k'nex - **How much does it cost?** ¥24590 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/543908803-knex-marble-coaster-run-with-motor-504-pieces-stem-building) ## Best For - k'nex enthusiasts ## Why This Product - Trusted k'nex brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Spiral Into Fun:** Design thrilling runs with 11 feet of twisting, turning coaster track that captivates builders and spectators alike. - • **STEM-Powered Play:** Boost fine motor skills and spatial intelligence while mastering engineering and physics fundamentals. - • **Motorized Momentum:** Bring your marble coaster to life with a powerful battery-operated motor that keeps the excitement rolling nonstop. - • **Epic 500+ Piece Build:** Unleash creativity with over 500 detailed components including unique accordion tubes and dynamic bounce pads. - • **Skill-Level Progression:** Perfect for all builders—start simple and scale up complexity to keep challenging your engineering prowess. ## Overview The K'NEX Marble Coaster Run with Motor is a 504-piece STEM building set designed for ages 8 and up. Featuring a battery-powered motor and 11 feet of spiraling track, it offers progressive build levels to develop engineering skills and creativity. This dynamic coaster run combines educational value with endless fun, making it a standout choice for aspiring builders and thrill-seekers. ## Description "Get ready for the ultimate building set for aspiring engineers and thrill-seekers: the K'NEX Marble Coaster Run with Motor! This innovative new set allows you to flex your creative muscles and build a fully-functional marble coaster from the ground up. With over 500 pieces and multiple template builds, this model kit is perfect for all skill levels from beginner to pro. Hook up your coaster to the working motor and watch your creation come to life with exciting movements and chain reactions that you can watch again and again. And with its sleek blue and yellow coloring, this coaster will look great in your game room, living room, or even your office. Recommended for kids and kids-at-heart ages 8 and older. 500+ PIECES This epic building set comes with over 500 pieces, including 3 accordion tubes, a see-saw marble scoop, and a bankshot bounce pad that will really add some WOW to your coaster! MOTORIZED MOVEMENT Experience the excitement of watching your creation come to life with the battery-powered motor! 3 BUILDING LEVELS This kit is ideal for builders of all skill levels. Kids can start with the beginner build, then work their way up to WOW with the more complex templates. SPIRALING COASTER TRACK Create epic designs for your coaster with 11-feet of spiraling coaster track - how cool! STEM/STEAM TOY The K’NEX Marble Coaster Run with Motor building set is both exciting and educational - helping children develop fine motor skills and learn about engineering and architecture. " ## Features - 500+ PIECES – This epic building set comes with over 500 pieces, including 3 accordion tubes, a see-saw marble scoop, and a bankshot bounce pad that will really add some WOW to your coaster! - MOTORIZED MOVEMENTS – Experience the excitement of watching your Marble Coaster Run come to life with the battery-powered motor that keeps the fun going! - STEAM LEARNING FUN – Building with K'NEX helps strengthen fine motor skills, manual dexterity, and spatial relations. Both exciting and educational, K'NEX can help children learn basic principles of physics, engineering and architecture. - SPIRALING COASTER TRACK – Create epic designs for your coaster with 11-feet of spiraling coaster track - how cool! - 3 BUILDING LEVELS – This kit is ideal for builders of all skill levels. Kids can start with the beginner build, then work their way up to WOW with the more complex templates. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BPK1196F | | Age Range Description | 8-100 years | | Best Sellers Rank | #75,717 in Toys & Games ( See Top 100 in Toys & Games ) #68 in Marble Runs | | Brand Name | K'NEX | | Customer Reviews | 4.2 4.2 out of 5 stars (366) | | Educational Objective | Creative Skill | | Global Trade Identification Number | 00744476124678 | | Included Components | 504 pieces | | Item Dimensions | 16 x 19 x 25 inches | | Item Type Name | Building Sets | | Manufacturer | K'NEX | | Manufacturer Maximum Age (MONTHS) | 1200.0 | | Manufacturer Minimum Age (MONTHS) | 96.0 | | Manufacturer Part Number | 12467 | | Material Type | Plastic | | Model Number | 12467 | | Size | 48.26 cm x 40.64 cm x 63.5 cm | | Theme | Buildings | | UPC | 744476124678 | | Unit Count | 350.0 Ounce | ## Images ![K'NEX - Marble Coaster Run with Motor‚ 504 Pieces, STEM Building, Kid Construction Set‚ Ages 8+ - Image 1](https://m.media-amazon.com/images/I/81crDO2gKxL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Is this worth it? The cheap price makes me a bit suspicious.** A: HI there - thank you for your inquiry - this is LEGIT - we just launched it! There are 3 levels that you can build upward. Watch the video in this listing (in the pictures section) for the best build & post-build play functionality for your reference. If you'd like to see the piece count - go to our Basic Fun toys website - go to "Support" and "Instructions" - type in Marble & this will pop up - page 4 shows the piece count with all of the new unique parts that go with this kit. Put in a ticket thru support if you have any further specific questions for us. We'd love to hear from you! Enjoy & happy building - your friends at Basic Fun ## Frequently Bought Together - K'NEX - Marble Coaster Run with Motor‚ 504 Pieces, STEM Building, Kid Construction Set‚ Ages 8+ - K'NEX - 3-in-1 Classic Amusement Park Building Set - 744 Pieces, Motorized, Kid Construction Set‚ Ages 9+ --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/543908803-knex-marble-coaster-run-with-motor-504-pieces-stem-building](https://www.desertcart.jp/products/543908803-knex-marble-coaster-run-with-motor-504-pieces-stem-building) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-13*