Welcome to the incredible world of Pixelblocks, the evolutionary building system! The tiniest dots of color you see on your computer or television screen are called pixels, and together they make up an entire picture. Pixelblocks are pixels made physical and set free from the computer screen. They allow the young at heart of all ages to use their creativity in endless ways. PixelBlocks come in a single shape, featuring a peg-and-hole combination for stacking top-to-bottom, and a unique tooth-and-groove combination on the other four sides. The unique shape allows PixelBlocks to be connected in three versatile ways that enable you to build effortlessly in 2-D or 3-D. The blocks themselves are approximately 3/8 (0.9 cm) translucent cubes. PixelBlocks come in a rainbow of 20 carefully chosen colors. Used in combination, PixelBlocks can express any mood from the vibrancy of childrens' toys, to the subtle shading of a photograph. Imagine the possibilities! The Imagination Set comes with 1200 pieces in 12 colors, a detailed color Idea Playbook, storage case, and can be used with other Pixelblocks sets. For Ages 6 and Up.