ThinkFun Gravity Maze Marble Run STEM Toy

This set is designed for children aged 8 and up. It includes 60 challenges, a game grid, 9 towers, 1 target piece, and 3 marbles. It features a clear instruction manual for easy learning and immediate play. The price drops from $27.99 to just $19.59. Shipping is free for Prime members or on orders over $35.