K’NEX Marble Coaster Run with Motor Set, 504 Piece Marble Maze Game Building for Kids, Stem Learning Construction Set, Interlocking Building Toy for Boy, Girl, Ages 8+ This epic building set comes

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 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.