Senston Hand Grip Strengthener - Adjustable Resistance 22 to 88 Lbs,Including 2 Silicone Grip Rings - Strength Trainer Forearm Exerciser Hand Exerciser Gripper Easily Adjustable Dial and Wide Range of Resistance with a High Quality, Longer Lasting Design Ergonomically Designed to Fit all Size of hand. Perfect for Men, Women, Seniors and Teens Ideal for Who Want to Increase Their Hand, Wrist, Forearem and Finger Strength,coordination and control ,like Climbing, Shooting, Bodybuilding, Golf, Basketball,Badminton,Tennis.Also Fit for Musicians Including Drummers,Guitar, Piano and Violin Players to Improve Dexterity and Performance Great Choice for Those With Arthritis, Rheumatoid Arthritis, Tendonitis, Carpal Tunnel, Tennis Elbow and Those Recovering From a Broken Wrist and Tendon Surgery Package Contain : 1 hand grip ,1 massage grip ring,1 grip ring(77lb)