***MISSING PIECES SELLING AS PARTS ONLY*** National Geographic Magnetic Marble Run STEM Building Set for Kids & Adults with Magnetic Track & Trick Pieces & Marbles for Building A Marble Maze, STEM Project

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• 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!
• AWARD-WINNING PRODUCTS - Blue Marble, winner of the Toy Association's prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience!