• High-quality steel, and suitable for everyone from rank beginners to World's Strongest Man winners.
• Hand grip helps to condition and strengthen your hand, wrist and forearm muscles.
• Easy to hold, lightweight and portable, easy to carry,develop fingers flexibility, strength and coordination.
• Spring number:6 Springs(Adjustable),heavy grip and adjustable from 50 to 1000lbs , you can according to their own needs to adjust the number and location of the spring.
• Men and women can use this, as well as seniors and teens.grip designed to give you the biggest gains in the shortest time. Make your hand much powerful.