•Suitable for: Guitar, Other, Piano, Ukulele
•Easy and simple to operate, adjust the tension from light to heavy
•The speed of practice should be slow, and increasing frequency
•Small size and ultra-light, convenient to carry and practice at any time
•Each finger button is fully adjustable
•Use to train your hand and fingers, build strength, endurance, flexibility and coordination
•Hand exerciser grip, a must tool to all music players