The ball is made up of 8 slices of different colors. Asmiling worm hid inside. The slices do not make up a fullball, they can be moved, and a worm will always bevisible in the hole. The outer surface of the lobules ispimply, and the inner surface is mirror-like, smooth.While touching the ball, the baby massages his handswith pimples and can feel the difference between asmooth inner and a rough outer surface. The worm canbe rotated around its axis.

