A set of soft rubber stacking balls comes in a box of 72 pieces, each crafted from durable PVC material. The balls measure 21.5 centimeters in size, making them suitable for young children aged 0 to 3 years. These educational toys are designed for logic and puzzle play, helping little ones develop coordination and problem-solving skills through stacking activities. Each ball is presented in a window box for easy display. This product is sold wholesale by the box.