About This 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.
