Marble Genius Marble Rails Starter Set, 200 Piece Marble Run (30 Marbles, 30 Rail Pieces, 12 Base Pieces, and More), with Online App and Full-Color Instructions

This comprehensive 200-piece building set allows users to create expansive marble rail runs, race tracks, and intricate mazes. Designed for children ages 8 and up, it features high-quality plastic components that challenge the laws of physics through hands-on STEM play. The kit includes 30 standard-sized glass marbles and specialized rail pieces that provide a unique motion experience compared to traditional vertical marble runs. Builders can utilize the free companion app for interactive instructions, building challenges, and educational games. With kid-friendly connectors that ensure stable structures, the set promotes critical thinking and fine motor skills. It is also fully compatible with all other Marble Genius sets, allowing for virtually limitless expansion.