These sensory circles are a great way to challenge children's sense of touch on all fours and develop their ability to describe sensory impressions. The discs are made of soft synthetic rubber and have different tactile structures and colors. Each of the tactile structures is found on a large disk to position on the ground and on a small disk to hold in the hands. There are endless possibilities to play with these discs, from purely tactile experiences to memory and recognition games. These games can be adapted to the age and level of the child.