Description: Provides wide range of tension for strengthening grips and fingers Strengthening your wrist , grip and fingers Adjustable from 4 to 6 lbs of resistance for the perfect workout Increase agility , dexterity , and mobility with our finger and hand gripper equipment . Perfect for stroke recovery, arthritis relief, and surgery recovery, musicians or rock climbers etc. Material: ABS + Silicone Size: approx. 8.5x6.5x1.5cm/ 3.3x2.6x0.6 inch Package Includes: 1x Finger Strengthener Tool