Building fun with a splash, build a water marble run!
From vertical drops and a vortex to spinners and spouts, this brilliant marble run is easy to build with over 100 sturdy pieces. Watch 20 buoyant marbles rush through the maze, the extra twists and turns keep the excitement moving! Have great fun learning the basic principles of physics with water and the inflatable mat provides a handy waterproof splash deck. Can be used with or withour water - sure to make a splash!