QBaMaze is an amazingly modular marble maze -- with only three different cubes there are endless ways for you to set it up, and even more ways the marble might go! MindWare's QBaMaze 2.0 Big Box is a great way to get started making amazing marble runs of your own. The set comes with 20 marbles, 18 bottom-exit cubes, 36 single-exit cubes 18 double-exit cubes, and an instruction booklet. Imported. Ages 6 & up. Warning: Chocking Hazard, contains marbles, not for children under 3.