Giant Polydron encourages children to make and recognise 2 and 3 dimensional shapes. This set consists of 40 triangles and 40 squares which are heavily textured on one side which helps children recognise different shapes. They are also marked with Braille to raise childrens awareness of alternate forms of communication. With large easy to attach shapes and designed for little hands, Giant Polydron is a must for all early years and special needs environments. The set also includes a guide.