NATIONAL GEOGRAPHIC Glowing Marble Run – Construction Set with 15 Glow in The Dark Glass Marbles & Storage Bag, STEM Gifts for Boys and Girls, Building Project Toy (Amazon Exclusive)

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 – This marble run kit includes 15 glow in the dark glass marbles in 6 colors! Kids will love watching them glow as they zig-zag down their custom tracks!
CONVENIENT STORAGE – A large storage bag makes it easy to store all your marble run construction pieces and glow-in-the-dark marbles in one place.
GREAT STEM TOY – The learning guide inside teaches about the physics of motion and aerodynamics. It also includes marble run construction experiments.
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!