A set of soft rubber stacking balls with water is offered in this wholesale box, containing 72 pieces. Each ball is made of rubber and measures 21.5 centimeters, designed for infants and toddlers aged 0 to 3 years. These water-filled balls are intended for stacking and sensory play, helping to develop early motor skills and hand-eye coordination. Each piece comes in a window box for display. This product is sold wholesale by the box.