The Ball with Cup is a classic early toddler material that invites the child to practice a precise, coordinated release of a ball into a cup, supporting hand-eye coordination and the refinement of voluntary movement. It belongs in the practical life or sensorial area of a toddler community, typically used with children around 12 to 18 months who are developing intentional grasp and release. Its simplicity is its strength — it isolates a single motor challenge and rewards the child with immediate, clear feedback.