NATIONAL GEOGRAPHIC Magnetic Marble Run - 75-Piece STEM Building Set for Kids & Adults with Magnetic Track & Trick Pieces & Marbles for Building A Marble Maze, STEM Project (Amazon Exclusive)

A KICKSTARTER SUPERSTAR - This patented marble racetrack is the most backed Kickstarter magnetic super puzzle of all time! Each track and trick has its own unique properties - just move them around to adjust or add exciting new pathways!

DESIGN, BUILD, TEST, CREATE - This wildly creative super puzzle includes 42 tracks & connectors, 17 trick pieces & 15 marbles for infinite building combinations and endless amounts of creative fun!

BUILD ANYWHERE MAGNETS STICK - This STEM marble maze for kids and adults can be built on any vertical magnetic surface like the fridge, lockers, whiteboards, workbenches & more!

BUILDING YOUR MAZE IS EASY - The secure snap-fit connectors eliminate frustration to keep you creative, with detailed instructions highlighting how to use each piece, and a Learning Guide that teaches about physics and engineering!

HIGH-QUALITY EDUCATIONAL TOYS - We're proud to make the highest quality hands-on science toys, and all are backed by exceptional service and a commitment to your satisfaction.