MIKASA Smile Lesson Volleyball, Size 4, 210g, White/Green, VS210W-W-G, Recommended Internal Pressure: 0.10-0.15 kgf/cm²

This ball is perfect for beginners and children who are not good at sports or ball games. The surface is made of the same sponge material as a kickboard! Soft, light, bouncy, and easy to hit! This ball is becoming increasingly popular in school classes and classrooms. It can also be used by seniors to maintain their health and for rehabilitation. *Please be careful not to overinflate. *For the optimal pressure, please refer to the pressure display on the ball's air inlet or the size label. The surface is made of the same sponge material as a kickboard! It's soft, so it won't hurt when hit! It's easy to hit! This ball is suitable for everyone from children to seniors! Weight: Approximately 210g (standard certified No. 4 ball: 240-260g) Diameter: Approximately 20cm Recommended internal pressure: 0.10-0.15 (kgf/cm2) Material: EVA