Hand Grip Power Trainer for Guitar, Bass, and Piano

Improve Finger Strength and Dexterity with Medium Tension Exerciser

ABS Guitar Finger Exerciser Piano Guitar Finger Power Trainer Hand Grip Gripper Workout Gym Exerciser Features: 1. Moderate size, perfect feel, easy to carry. 2. Visual force adjustment, adult MF4-1 (3-7 lbs), children MF4-2 (2-5 lbs). 3. Soft silicone protection at the bottom and top, comfortable to the touch, anti-slip and anti-slip. 4. Each button is flexible, not loose, durable. Specifications: Material: ABS Color: black, orange, emerald green, pink Size: 85mm*60mm*20mm/3.34*2.36*0.78''