National Geographic Glowing Marble Run C 250 Piece Construction Set with 50 Glow in The Dark Glass Marbles Mesh Storage Bag Great Creative St

GREAT STEM TOY C The learning guide inside teaches about the physics of motion and aerodynamics. It also includes marble run construction experiments. CONVENIENT STORAGE C A mesh bag and marble pouch makes it easy to store your marble run construction pieces and glow-in-the-dark marbles in one place. GLOW IN THE DARK MARBLES C The marble run kit includes 6 different colours 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. STURDY TIGHT-FIT PIECES C This construction kit is designed to fit together snuggly so your marble maze wont fall apart while you play. With 12 sturdy bases 58 exciting action pieces and 130 c