Montessori Object Permanence Box with Tray Three Different Materials Balls is a classic Montessori material that is introduced to infants once they can sit up independently, at approximately 6–12 months of age.
• Through the action of whole-hand grasping and by inserting the ball into the hole, the child practices and develops fine motor skills.
• This montessori object permernence box can help our little genuis to experience object permanence by seeing that the ball did not just disappear.