A unique building system of colorful cubes that interlock to form a marble run. Configurations are unlimited allowing for unpredictable action when steel marbles travel the various routes. Get creative and build maze sculptures in the form of animals geometric shapes or abstract designs! Action-packed set of coaster tubes and marble vortex for a twisting turning and creative marble roller coaster ride. Includes 2 innovative mesh coaster tubes 1 marble vortex 1 universal connector and 10 steel marbles. Cubes not included in this set. Ages 6+.
