Finger Strengthener Trainer Kit-4 Pack】: The Grip Strengthener Trainer included adjustable Hand Grip Strengthener (13/17/21Lbs), Finger stretcher Resistance Band (6.6Lbs, 8.8Lbs, 11Lbs on each finger), Hand Strengthener Grip Ring(50Lbs), and Stress Relief Grip Ball
【Adjustable Finger Strength Trainer】 Silicone guitar finger exerciser provides you with 3 levels of resistant levels, including 13LB, 17LB, and 21LB. You can choose the appropriate level according to your grip strength. With the help of the finger grip strengthener, you can not only enhance the strength of the fingers, forearms, and wrists, but also isolate and train the flexibility of each finger separately. It is convenient and practical.