Improves grip and power recovery Adjustable grippers are ideal for strengthening hands, forearms, wrists and fingers. Simple and effective, this device improves your grip, relieves stress and increases endurance. Perfect for anyone looking to develop and maintain strong, healthy hands. HIGH QUALITY AND DURABILITY - Our grip trainers are made from durable plastic and reinforced metal alloys which unlike our competitors, break or are made from poor quality materials. Durable and safe, it won't hurt your hands and fingers, giving you a great user experience. FITS ALL SIZES OF HANDS AND PORTABLE - Whether you are a woman or a man, a child or adult, beginner or experienced, you can start practicing your grip anytime, anywhere. Suitable for all age groups, suitable for all types of hands. The hand clips are made of high quality lightweight material, so you can easily put them in bags, pockets.