Overview

Build a twisting, turning marble run and race incredible glow-in-the-dark marbles!This 50 piece set has 41 construction pieces, 8 marbles, a UV keychain light, and a mesh storage bag. Everything you need!Learn about motion and gravity in the detailed learning guide.Experiment with different marble run builds to make your marbles race faster or slower. The fun never ends! STURDY TIGHT-FIT PIECES This construction kit is designed to fit together snuggly so your marble maze won’t fall apart while you play. With 5 sturdy bases, 15 exciting action pieces, and 45 clear smooth-run track pieces, our kit has countless imaginative configurations.GLOW IN THE DARK MARBLES The marble run kit includes 6 different colors of glow in the dark glass marbles that shine bright as they zig-zag down the marble run. Also Includes UV light to quickly recharge the marbles.CONVENIENT STORAGE A storage bag and marble pouch make it easy to store your marble run construction pieces and glow in the dark marbles in one place. Makes a great STEM gift for boys and girls!GREAT STEM TOY The learning guide inside teaches about the physics of motion and aerodynamics. It also includes marble run construction experiments.HIGH-QUALITY EDUCATIONAL TOYS - National Geographic is proud to make the highest quality hands-on science toys, and all our products are backed by exceptional service.