1.Bold spring

2.Rotate and reset to zero

3.Adjusting grip strength 5kg-60kg

4.Automatic counting 

This gripping device is suitable for different groups of people. Students can use it to exercise their bodies, work people can use it to relax their arms, play games for too long can also use it to alleviate body stiffness, and fitness professionals can use it to increase strength and muscle growth. And more suitable for guitarist, pianist, basketball lover, tennis lover, rock climbing lover etc.