Q-BA-Maze 2.0 Rails Builder Set

Ramp up your marble run obsession! The Q-Ba-Maze 2.0 Rails Builder Set from Mindware features uniquely designed cubes that allow for a limitless range of building options. Easily connect the rails to the cubes or to each other to form tracks that your marbles can zigzag through. The precision engineering of the double-exit cubes will have everyone wondering, "Which way will the marbles go?"   This limitless, challenging set will make for hours of creative play from kids and adults alike!   Includes: 40 single-exit cubes 20 bottom-exit cubes 20 double-exit cubes 10 straight-away rails 4 marble catchers 20 marbles