adidas Performance Tango Soccer Ball 100% TPU Injection-Molded Made in USA or Imported Special TPU exterior material is designed to resist abrasion and last longer Butyl bladder for best air retention to keep the ball's shape and stay inflated longer Ball ships deflated--inflation is required; pump not included Size 3 ball suggested for ages 8 and under, Size 4 ball suggested for ages 8-12, Size 5 ball (official size) suggested for ages 12+