What do musicians, rock climbers, athletes, weight lifters and office workers have in common? They can all stand to benefit from these hand and finger exercisers. The finger exercisers improve finger strength and dexterity while the hand grip rings will improve grip and forearm strength. With 3 levels of resistance you can start out light and make your way up to the heaviest resistance. Their small size allows you to throw them in your purse or gym bag to be used whenever and wherever.