There is a durable guitar practicing tool. The inability to often limits the improvement of performance level. Adhering to training to improve basic skills is the way. This finger training device is continuously improved to help people solve the problem of unable to open their fingers and increase flexibility. Features -Color:Black -Material:ABS, Copper -Size:20.00X3.00X1.00cm/7.86X1.18X0.39in -The finger trainer trains your fingers to get used to open gestures, and over time, you will success even without its help. -The finger exerciser can train your fingers to get used to open gestures. Suitable for beginners to practice hand gestures. -The finger expander can effectively improve the flexibility of your fingers and help you play the instrument better. -The guitar finger expander can be a great friends around you in need-those who love musical instruments. -Just a few days of practice, you will find obvious improvement. Efficient practice, recommended for beginners. Package list: 1 x Finger Exerciser