National Geographic 50 pc Glow-in-the-Dark Marble Run

Race glow-in-the-dark marbles down a twisting, turning marble run! Also included is a detailed learning guide that teaches the physics of motion and gravity.

STURDY, TIGHTENING PARTS - This construction kit is designed to fit perfectly so your marble maze doesn't fall apart as you play

GLOW IN THE DARK - The Marble Marble Kit includes different coloured, glow in the dark glass marbles that glow as you zigzag down the marble track. It also includes UV light to quickly recharge the marbles.

CONVENIENT STORAGE - A mesh bag and marble bag make it easy to store your marble building pieces and glow in the dark marbles in one place. Makes a great gift for boys and girls.

Great toy - the learning guide inside teaches about the physics of motion and aerodynamics. It also includes marble race building experiments.