You'll always be ready to hit the court with SPALDING®'s NEVERFLAT® composite indoor/outdoor basketball. It features a top-level composite leather cover for exceptional grip and control, and it's guaranteed to stay fully inflated for at least 1 year; that's 10 times longer than traditional basketballs! FEATURES Cover Material: Top-level composite leather for exceptional drip and control NEVERFLAT® Pressure-Retention System: Stays inflated 10x longer than traditional volleyballs Construction: Membrane technology tightens the natural pores in the bladder to improve pressure retention Proprietary NitroFlate® molecules are injected into the ball, forming a protective barrier against air seepage Specially designed valve with cap eliminates leaks and keeps dirt out Recommended Play: Indoor/outdoor use Official size