B. Toys marble run

Description Challenge your toddler’s imagination and creativity with the Marble-palooza™ from B. toys! This interchangeable marble maze will let your child build different structures out of durable and colorful pieces. Once they’ve built their maze, watch the marbles zoom from point A to who knows where! A bunch of moving pieces and plenty of twists and turns will keep everyone guessing. This fun and interactive STEM toy is great for improving fine motor skills and problem-solving abilities with everyday play. Recommended for little builders 3 years and older. This set was used once the day we got it for a birthday and then it's been in a bin unused for 2 years.