Kumon Publishing Kumikumi Slope 100 Educational Toy (Ages 3+)

A huge set with 100 parts for endless fun! Combine parts freely to create a fun and large course! These 100 parts are the best parts of the Kumikumi Slope series. Glows in the dark! Includes glow-in-the-dark parts and glow-in-the-dark balls. Comes with a base for stable course construction.