This violin bow grip corrector is made of rubber, which has reasonable design, practical functions, and can be well applied to supports curved finger. Simple structure and excellent craftsmanship make it easy to use and have excellent durability, suitable for violin training and playing. Features -Color:Black -Material:Rubber -Size:7.80X1.50X1.50cm/3.07X0.59X0.59in - Violin bow grip, easy to use, thumb to press intersections of stick, positions index finger to bow. - Violin bow grip helps violin beginners and children to gradually correct their bow grip, for child to adult hand sizes. - Violin bow grip, a practical accessory, is perfect to upgrade the violin bow and help the correct position. - 1/8-1/10 violin bow posture corrector, crafted from rubber material, practical and durable, suitable for a long term of use. - Violin posture corrector has a simple design, providing comfortable grip and won't cause damage to the violin. Package list: 1 x Violin Bow Grip