A gentle introduction to focus, curiosity, and discovery. The Object Permanence Box with Tray features a round hole on top and a small tray below. When your baby drops the wooden ball through the hole, it disappears momentarily and then rolls out into the tray, revealing that what goes out of sight still exists. Through this simple, satisfying cycle of drop, disappear, and return, your child naturally strengthens hand-eye coordination, concentration, and early understanding of object permanence.