The Performance Series Rubber Basketball acts and plays like a leather basketball, but costs much less. Constructed of cellular rubber, this hardy basketball is not only easy to grasp, but it?s also resilient to wear and tear. Unlike leather basketballs, this rubber ball can be used both on indoor or outdoor courts. The bladder material, or inside shell of the basketball, is made from 100% butyl to help reduce air leaks and provide air-tight compression. This first-class basketball is the official women?s basketball size, size 6. Ideal for your recreation, gym class, team sports and personal enjoyment, Champion Sports is so sure this basketball is durable that it comes with a 2 year warranty from the manufacturer.