Made from ABS material, it has a comfortable feel and a user-friendly appearance design, making it easy for beginners to operate. This five finger training tool for piano beginners and performers to exercise their hands, train finger strength, and correct finger posture. This design is designed to correct fingering and maintain the correct posture of the palms to good support. Use this fun and effective hand trainer to enhances your musical performances and take your piano skills to a . Palms support is the keys to maintaining good hand posture. Hand orthotics are suitable for most instrument performers and can also be used for finger strength exercises in . Size: . 12.5x10.5x6cm/4.92x4.13x2.36inch Color: Black Material: ABS Package Contents: 2 * Piano Finger Exerciser Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.