• 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.