Giant Polydron construction sets help children to understand spatial awareness from an early age, whilst having great fun. The product encourages children to make and recognize 2 and 3 dimensional shapes such as a rocket, star or a boat. The shapes are designed so they are easy for little hands to manipulate. The product is heavily textured on one side to help users recognize different shapes and forms and also marked with Braille to help children be aware of alternative forms of communication. Includes 40 squares and 40 triangles. Square measures 8.27" x 8.27".