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

Youll be amazed as you watch glowing marbles race down the 50-piece National Geographic Glow-in-the-Dark Marble Run! This set comes with 41 construction pieces that fit snugly together, 8 glow-in-the-dark marbles, a storage bag for all your pieces, and a UV light keychain so your marbles shine bright as they zig-zag down the marble run. A full-color learning guide inside teaches about the physics of motion and gravity. There are countless configurations kids can build with this set, meaning play will last for hours and hours!

Contains: Does Not Contain Any of the 8 Major Allergens
Suggested Age: 8 Years and Up
CPSC Choking Hazard Warnings: Choking_hazard_contains_a_marble 
Educational Focus: Engineering, Science, Physics, Problem Solving, Creativity
Includes: Activity Guide, Storage Bag
Battery: Lithium, Optional, Included