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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. Sets range from a 59 piece travel set with locking travel case to a 1 000 piece large group activity set. The IO Blocks scale is derived from a .5 cube the largest pieces measuring 1.5 W x 1.5 L x .5 D Features: 12 unique plastic shapes and features 6 colors Curved elements add to the variety Encourage more fluid designs and organic themes Largest pieces measuring 1.5 W x 1.5 L x .5 D Warning: small parts Age: 4+ Specifications: Largest pieces measuring 1.5 H x 1.5 W x .5 D