Create a limitless world of people, animals, architecture, robots, vehicles and more with IO Blocks! Each set comprises 12 unique plastic shapes and features 6 colors; red, blue, green, tan, black and white. Curved elements add to the variety and encourage more fluid designs and organic themes. IO Blocks connect with a secure, yet easily adjustable friction fit and feature a beautiful matte finish to the touch. The IO Blocks scale is derived from a 1/2” cube with largest pieces measuring 1-1/2”W x 1-1/2”L x 1/2”D. Free IO Build App available for your smartphone and tablet!