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. 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. These are both new and unused. The boxes were opened to check to make sure all pieces are there.