GLORY SPORTS PU Futsal Honor Indoor Match and Training Soccer Ball NO PUMP: Because of the thermo bonding soccer ball, The soccer ball doesn't need pump, it is inflated before shipping. Material: PU06-AR190, 4.0mm EVA, wrapped filled rubber bladder, the futsal soccer ball diameter: 20cm. Thermo bonding soccer ball, 32 panel construction with unique and striking design, optimal for match and training play. Size 3 ball suggested for ages 7 and under, Size 4 ball suggested for ages 7-12, Size 5 ball (official size) suggested for ages 12 and above. PU cover for superior durability, valve and wrapped filled rubber bladder for best air retention to keep the ball's shape and stay inflated longer.