Glitzgrip Arm Builder Strength Balls are ball-shaped finger strengtheners designed to improve dexterity and strengthen the fingers, hands, and forearms, with a textured handle for a secure grip. Key benefits - Builds grip strength for the fingers and palm and enhances flexibility and strength of the fingers, palm, and forearms. Ideal for guitarists, rock climbers, and fitness enthusiasts; incorporating into a daily routine can improve hand, wrist, and forearm power. Design and fit - Claw-style grip that conforms to the hand, plus a soft, adjustable handle that comfortably fits a wide range of hand sizes; suitable for most users. Versatility - Core strengthener for muscle training and finger strength; suitable for strengthening hand muscles or aiding recovery. Performance - Regular use targets grip strength and can lead to noticeable improvements in grip endurance and control over time. Use scenarios - Guitar players improving finger dexterity for precise fretting and chord transitions. - Climbers building finger and forearm strength for hangs, crimps, and grip holds. - Rehabilitation or ongoing grip training as part of a fitness routine.