Smart Counting Grip Strengthener-Add counting function, our hand strengthener could record your exercise number every time when you use it. So you can know better your training progress and training results with counting numbers. Just Press the button firmly to count automatically, Easy-Adjustable Resistance-Easy to adjust the resistance from 5-60 Kg as needs. The hand Gripper is suitable for everyone, such as athletes, sports enthusiasts, fitness coaches, Adjustable Finger Gripper Exerciser Black resistance levels: With resistance levels, this finger grip strength trainer is suitable for both beginners and advanced users. You can easily adjust the griper resistance level according to your strength and training goals and act as finger gripper for veins exercise tool.