Q-BA-Maze 2.0 is a unique system of colorful cubes that interlock to form a marble run. The big difference? You can create marble maze sculptures in the form of animals, geometric shapes or any other design! Configurations are unlimited, allowing for a live demonstration of probability, physics and art, all in one! Set includes 72 cubes in five different colors plus 20 steel balls. Ages 5 and up. Gender: Unisex.