The Gonge tactile discs are made of nice to touch rubber, containing five different tactile structures, each with its own colour. Each structure can be found on a large disc for positioning on the floor, as well as a small disc that a child is able to hold in their hands. Games can be adjusted, to fit the child's age, and level of functionality. The second set of structures make play even more challenging, as there are several different tactile sensory impressions. Includes:. 5 large discs. 5 small discs. Blindfold. Cloth bag. Dimensions: Diameter 270 and 110mm. Age Suitability: 12 Months+.