A set of soft rubber stacking balls with a water spray function, presented in a window box, offers a playful way for infants and toddlers aged 0-3 to explore early learning concepts. Each ball is crafted from PVC and measures 21.5cm, making them suitable for little hands to grasp, stack, and squeeze during bath time or sensory play. This 72-pack provides a substantial supply for retailers to stock. This product is sold wholesale by the box.