
Marble Genius Marble Rails Extreme Set
625 Piece Marble Run (55 Marbles, 80+ Rail Pieces, 20 Base Pieces, and More)
Comes with an online app and full-color instructions. Ages 8 and up.

- For STEM fans who love to build: This marble rails playset contains 625 pieces total. Includes over 80 rail building pieces and 20 bases, allowing you to build massive marble rail runs
- Marbles included: This set includes 55 standard-sized glass marbles. Kiddos will love watching them fly along the marble rails
- 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 snuggly 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 are available
- Endless options: All Marble Genius products are compatible. Our marble run sets, marble maze games, and accessory sets can all be used together

WHAT MAKES MARBLE GENIUS 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.