Adjustable Hand Grip Strength Fitness Heavy Duty Grip Grip with Reverse Finger Exerciser Grip Strength Wrist Extender Gym Arm Muscle Training Smart Counting

Grip exercise tutorial Four fingers as a point , thumb and tiger mouth for the other point , two points squeeze squeeze hard to stay for a second and then slowly release , remember not to speed open and close , otherwise not only start to exercise effect , muscle will also be sore , daily exercise will enhance your grip strength , small arm dimension will also slowly increase , adhere to a plan and a reasonable exercise mode and frequency , healthy exercise enjoy life .