Finger Trainer Hand Grip Exerciser for Guitar Bass Ukulele Piano Violin Music Players

Features:
Easy to train anywhere, whether in the traffic jam or in the evening cozy in front of the TV.
High quality silica gel freezing production, flexible, good elasticity, not easy to deformation.
Strengthens your finger muscles and even parts of your forearm.
Widely used for finger exercise when you play guitar, piano, bass, ukulele, saxophone, violin or orchestral instruments.

Specification:
Material:silica gel
Length:7cm
Width:3.5cm
Height:1.5cm
Color:dark blue,sky blue,blue

Package Include:
1 x finger trainer