The Spheres come in eight different clear colours and are soft and warm to the touch. Older children will find them fascinating as they hold them up and look through them seeing the world around them in different colours. The way light behaves when children look through the spheres they will also see the world from a different angle. Holding two or three Perception Spheres together creates new colours and hues; using the Spheres on a light panel will enhance the children’s opportunities for colour mixing. 50mm dimensions