Spalding Infusion Basketball.Durable outdoor /indoor basketball designed to withstand the street game. The Spalding NBA Infusion Basketball features a built-in 'Micro Pump', a fine tuning device that adds air pressure in small amounts so your ball is never under-inflated and you're always ready to play.

Simply twist, pump, lock and play. Precision engineering enables the ball to meet all NBA specifications and guarantees that the pump won't affect weight, balance or playability.

Durable Outer Cover. Official NBA Size and Weight.