Q-BA-MAZE 2.0 is a unique system of colorful cubes that interlock to form a marble run. What makes Q-BA-MAZE special you ask? You can create thrilling maze sculptures in the form of animals, geometric shapes or any other design! The Q-BA-MAZE 2.0 Big Box includes 72 cubes in five different colors and 20 marbles. Configurations provide exceptional stability, allowing for unpredictable action when the steel balls travel the various routes. Use your critical thinking skills to stack and interlock the translucent pieces in a way that creates an advanced marble maze that keeps everyone, including yourself, guessing! Building the colorful maze is only half of the fun; grab your friends for a marble race-off! Expand your hand-eye coordination and spatial reasoning skills with every roll, twist and turn!Strengthens STEM, physics, basic engineering, strategy & fine-motor skillsExpands creativity, cooperation and logical thinkingPerfect collaborative learning tool to use with parents or siblingsIncludes 18 bottom-exit cubes, 36 single-exit cubes 18 double-exit cubes and 20 marblesCubes are made from phthalate-free and BPA-free ABS plasticMarbles are nickel plated steel balls. They are not magnets.