Ellipsoids On Small PegsEllipsoids on small pegs is toddler material which comprises of a square wooden board with 4 small pegs that holds 4 ellipsoids of the same size. Placing the ellipsoids on the pegs is a challenging task for the infant. As the pegs seem to disappear in the ellipsoids, the child experiences that the center hole in the ellipsoid disappears too, and the shape becomes whole. Recommended Ages: 1 year and up