Q-BA-MAZE 2.0 Cascading Marble Refill Set WELL DESIGNED: Add height and marble madness to your Q-BA-MAZE builds with Cascade Stilts and 40 steel marbles that clatter, teeter, bounce and leap through your marble run. For use with Q-BA-MAZE 2.0 cubes (sold separately). TOYS THAT TEACH: Q-BA-MAZE 2.0 Cascading Marbles Refill Set from MindWare is a fantastic addition to any Q-BA-MAZE structure. Building with Q-BA-MAZE is a great way for teaching children to embrace their creativity and design engineering marvels. It is also perfect for any young builder looking to improve hand-eye coordination, problem solving with basic physics, and planning skills. In no time at all youll have a skilled architect on your hands! NO HASSLE: With no glue or connectors needed, our Q-BA-MAZE 2.0 Cascading Marbles Refill Set is ready to play right out of the box. Forget the hassle of having to round up a laundry list of non-included tools and components. Simply unpack, add to your existing Q-BA-MAZE 2.0 set and build! FOR ADULTS: Q-BA-MAZE 2.0 sets (sold separately) arent designed purely for children. Educational and entertaining for older individuals as well, our Q-BA-MAZE 2.0 sets (sold separately) challenge even the most honed mind to make complex engineering marvels. Great-for keeping your mind sharp, limber, and most importantly, interested! INCLUDES: 2 cascade stilts and 10 marble