the NATIONAL GEOGRAPHIC glow-in-the-dark marble run expansion pack is a phenomenal construction activity kit for kids! This set has everything you need to make your marble run bigger and better than ever! this kit includes: - 9 tube pieces>- 9 action pieces>- 5 glow-in-the-dark marbles>- 1 UV light keychain configure the pieces in any design you'd like - the possibilities are endless! national Geographic toys is proud to provide a 100% satisfaction with all our products so that you can buy with confidence. about the NATIONAL GEOGRAPHIC society: with a mission to inspire people to care about the Planet, the 131-year-old NATIONAL GEOGRAPHIC society is one of the world's largest nonprofit scientific and educational organizations. national Geographics net proceeds support vital exploration, conservation, research, and education programs.

Features

EXPAND YOUR MARBLE RUN - This expansion pack (not a stand-alone marble run kit) enhances National Geographic Glow in the Dark Marble Runs (non-magnetic) with 20 additional construction pieces that fit snugly so your marble maze wont fall apart: 9 tube pieces, 9 action pieces, and 2 base pieces.

GLOW IN THE DARK MARBLES - add 5 new glow in the dark glass marbles to your collection and watch them shine bright as they zig-zag down the marble run.

UV LIGHT - a UV light comes with the expansion pack to help give your marbles the ultimate glow.

GREAT STEM TOY - the learning guide inside teaches about the physics of motion and aerodynamics. It also includes marble run construction experiments

HIGH-QUALITY EDUCATIONAL TOYS - We're proud to make the highest quality hands-on science toys, and all our products are backed by exceptional service.

Specification

Product Detail
Color	Multi-color
Dimensions	10.24x10x3.54
Weight	0.01