Hand Grip Finger Trainer Strengthener Adjustable Power Training Home Equipment Piano Guitar Exerciser

Hand Grip Finger Trainer Strengthener Adjustable Power Training Home Fitness Equipment Piano Guitar Finger Exerciser Trainer.    Features: 1. Moderate size, perfect feel, easy to carry.  2. Visual force adjustment, adult MF4-1 (3-7 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`` ;  Net weight: 46g;  Gross weight: 58g;    Package Include: 1 x Finger Exerciser;