Marble Genius Marble Rails Bases: 5 Piece Marble Run (3 Small Round Bases, 2 Wide Arches), Add-Ons for Use with Marble Rails Playsets, Includes Online App and Full-Color Instructions, Ages 8 and Up

WHAT MAKES US DIFFERENT? Download our free Marble Genius app for interactive instructions and building challenges We pack the most action pieces for your dollar into each of our sets + we offer action-filled accessories. With more than 50 marble runs on the market and 5 patents, we offer the most unique and innovative marble run products to keep expanding the fun. All Marble Genius Marble Run sets and Marble Maze games are compatible, giving you endless add-on options.

For STEM fans who love to build: This marble rails add-on set contains 5 pieces total, for expanding any marble run. Marbles sold separately What’s included: In this kit, you’ll find 3 Small Round Bases and 2 Wide Arches. These 5 pieces give STEM fans stable foundations for expanding their marble runs for more and more playtime fun Designed for kids: All Marble Genius sets are challenging enough for adults and yet easy for kids to use. Our kid-friendly connectors fit together snugly and provide a stable structure Free app with purchase: Download the Marble Genius instruction application for step-by-step guidance, fun challenges, and regularly updated content. iOS and Android versions Endless options: All Marble Genius products are compatible. Our marble run sets, marble maze games, and accessory sets can all be used together