The Imbucare Box with Large Cylinder (SKU: I 070-1) is a foundational object-permanence and hand-eye coordination material for the youngest children in an infant-toddler environment, typically from around 8 months onward. The oversized cylindrical opening and corresponding wooden cylinder are sized for easier grasping and insertion, meeting the child at an early point in fine motor development before precision is established. This box works well as the entry point in your imbucare progression, placed low on the shelf where independently mobile infants can access it with ease.