DONGJI Hand Grips Strengthener, Adjustable Resistance 22-88 Lbs, Hand Exerciser Strength Trainer Hand-muscle Developer , Build Hand Finger Wrist and Forearm Strength Easily No need to buy multiple hand grips adjustable dial that can be adjusted from 22 to 88 pounds (10-40kg) you can build strength over time Ideal for improving strength, power and speed in the wrists, fingers forearms, hands Ergonomically designed to fit all hand sizes, perfect for men and women, seniors and teens Non-slip handles covered with soft, comfortable and durable rubber for frequent and comfy use