The Franklin Sports Grip-Rite 1000 Intermediate Basketball is designed to provide extra durability and will last for years, even when dribbled on outdoor surfaces. It’s made of top-grade rubber and yarn that is wound specifically for outdoor use. At 28.5 inches diameter, this basketball is an intermediate size. Click here to get the Franklin Sports Grip-Rite 1000 Basketball for only $10, the lowest price ever! Official