SUNVP Hand Grip Strengthener Wrist Finger Forearm Strength Exerciser Easy Adjustable Resistance from 22 to 70 Lbs (10-32 Kg) for Musicians Athletes and Rehabilitation Exercising Material: Body -POM match steel materials, components: spring steel Dimensions: 10 * 15 * 2.3 cm, Weight: 0.165 Kg Purpose: training hand strength, tone muscles, relieve fatigue, relieve stress, relax Four pressure adjustment: intensity adjustment 22 to 70 Lbs Pressure adjustable, easy to operate, safe, durable, compact and easy to carry and easy collection, no restrictions on use