Adjustable Hand Grip Strengthener and Therapy For Hands Forearms Wrist and Fingers - Resistance Adjusts 10-40 Kg (22 to 88 Lbs) COMFORTABLE: The ergonomic design is comfortable for all hand sizes from Large to Small and is beneficial for male and female of any age. STRENGTHENS: This product is perfect for athletes, such as rock climbers, gymnasts, weight lifters, baseball, racquetball, hockey, golfers, etc. who will benefit from added forearm, wrist, hand, and finger strength ADJUSTS EASILY: The front dial adjusts easily with a wide range of tension which ranges from 22 to 28 pounds and is a popular product for those with arthritis, strengthening tendons from surgery, those recovering after a broken wrist, hand, or fingers. HAND THERAPY: The Easily Adjustable Dial and Wide Range of Tensions Make This Hand Exerciser a Popular Choice for Those With Arthritis, Rheumatoid Arthritis, Tendonitis, Carpal Tunnel, Tennis Elbow and Those Recovering From a Broken Wrist and Tendon Surgery BENEFITS: Hand Strengthening exercises are beneficial for those in the arts as well such as jugglers, piano players, drummers, guitar and violin Players