Guitar Finger Exerciser, Hand Strengthener Trainer Tension Exerciser Grip for Piano (Orange)

ALL-IN-ONE: This 5-button finger exerciser is specifically designed for many musical instrument, like guitar, Trompete. It also helps for your finger strength exercisse. ADJUSTABLE TENSION: Individual finger tension is adjustable, ranging from 3LB to 8.5LB. You can lock 2 buttom simultaneously, so that you can select different tensions for each finger and choose whatever fingers you want to exercise at your will. PREMIUM & STURDY: Enviromental silicone offers great grip during exercise and Copper core spring offfers good resilience for strength building. COMFORTABLE GRIP: Anti-slip granule on the silicone surface makes it not easy to slip off from your palm; Groove design of the buttom makes a comfortable press. CONVENTIENT: With a portable size, you can carry it in your luggage, pocket, purse, handbag etc., strength your fingers at any time when you want.