A member of the award-winning Techno Gears Marble Mania Mini Series, the Catapult 3.0 set includes more than 80+ translucent pieces to build and create your own marble and gear run. Once completed, the spring-loaded shooter launches the marble to the top of the build where the track and the fun begin. This unique construction set aligns with and supports STEM (Science, Technology, Engineering, and Math) standards and boosts confidence in the young ones who accept the rewarding challenge to build it! Recommended for ages 6+ years.