Perfectly Balanced: 2.2lbs/1.0kg trainer basketball ensures ultimate consistency in shooting, passing, catching, rebounding and ball handling, greatly helps you strengthen your fingers, hands, wrists and arms for greater control.pu Leather: our weighted basketball is constructed with premium Pu leather for added wear-resistant, and moisture absorbing material brings tacky feel and provides a secure grip even when your palms got sweaty, knees got weak and arms got heavy.