The object permanence box is a classic Montessori material which helps develop the child's sense of object permanence. It is a material best suited for infants and toddlers. It allows them to experience object permanence and invokes curiosity in children. It Encourages your little one to explore on their own over and over again and gives them a sense of goal achievement. It helps in increasing focus, fine motor skills, hand–eye coordination, grasping and exploration skills in your little ones.  The Object Permanence box is made of European Birch & the ball in solid beech wood coated with non-toxic water-based paints.