Now, this is something that you need! Dado Cubes combine art and science as kids of all ages explore architectural principles such as proportion, balance, structure, composition and color. A contemporary twist on classic stacking blocks, Dado engages the imagination as the slits on each cube are interlocked to create an unlimited number of three-dimensional structures! Constructed horizontally, vertically, or nested together ... Dado Cubes invite visual spatial development and problem solving through design-centered, attention-grabbing fun!