F.I.V.B Official Kids Volleyball. The latest high-tech development of MIKASA. EVA foam cover provides an incredibly soft velvety feel. Cloth wrapped construction. 8 panel yellow blue design. Leakshield rubber bladder technology. Lightweight to help develop a range of skills for the younger volleyball enthusiast without overpowering or discouraging them. This size 5 is specially designed for children of Primary School age. Only weighs 180g F.I.V.B inspected