... sports like golf, tennis, squash, cricket, badminton, baseball, bowling, basket-ball,, motocross, mountain climbing.2. Increases strength in fingers, wrists, hands ... at any time and in any place while chatting, watching TV, going outing and mountain climbing, and taking a bus.Features ... is a circle of silicone rubber on the surface of the ball. That can prevent the ball from sliding down to the ground ...