Let construction creativity run wild with the National Geographic Glow-in-the-Dark Marble Run. Children can build, rebuild, and redesign endless marble run configurations while exploring the science of gravity, motion, and engineering through hands-on play. The set includes construction pieces, glow-in-the-dark marbles, and a UV light keychain to enhance the glowing effect for exciting visual play. With open-ended building possibilities and STEM learning built into the activity, this set offers excellent repeat play value and a strong blend of construction, creativity, and science.

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