Features of National Geographic Magnetic Marble Run 50Piece Stem Building Set For Kids Adults With Magnetic Track Trick Pieces Mar

Our Most Exciting Marble Run Yet - Developed With Makeway, This Marble Race Track Is An Innovative Engineering Kit With Endless Possibilities For Having Tons Of Fun While Exploring Physics! | Build Anywhere Magnets Stick - This Stem Marble Maze For Kids And Adults Can Be Built On Any Magnetic Surface Like Refrigerators, Lockers, Whiteboards, Workbenches & More! | Design, Build, Test, Create - This Wildly Creative Building Toy Includes 33 Tracks & Connectors, 6 Trick Pieces & 10 Marbles For Infinite Building Combinations And Endless Amounts Of Creative Fun! | Building Your Maze Is Easy - The Secure Snap-Fit Connectors Eliminate Frustration To Keep You Creative, With Detailed Instructions And A Learning Guide That Teaches About Physics And Engineering! | Satisfaction Guaranteed - The National Geographic Stem Series Provides Kids High-Quality Educational Toys That Are A Whole Lot Of Fun! If Your Experience Is Anything Less Than Extraordinary, Let Us Know So We Can Make It Right For You.