Description Resistance range: 10 - 60kg. It is a kind of small fitness equipment to exercise wrist, arm strength. the grip exercise is very easy to do anytime, anywhere. . Fit Anyone: The simple and convenient design makes it a perfect workout aid for anyone who wants to exercise, like: teens, adults, and even seniors who want to keep their handling. . The handle uses thermoplastic rubber material, which belongs to environmentally friendly rubber, it has good wear resistance, draping and shock absorption, and will not hurt the hand .High quality spring steel is chosen during the production process, which is resistant to high temperatures, rigidity and long service life. . The grip is easy to insert into your pocket or backpack, allows you to exercise your hand anywhere and anytime, whether it's home, the gym, the office or when you are walking, watching TV, outdoors and traveling. . Adjustable clamp Suitable for: The hand exerciser is suitable for surfer, golf, tennis, table tennis, rock climbing, other sports enthusiasts guitarists, pianists, massage therapists, tennis players. violin.Ideal for improving grip strength, hand endurance, dexterity, muscle tone and fine and gross motor skills.