This item is a practical cello/violin bow frog, which is made of copper, metal. It has bright sound and on fingers, fits for professional player to use. A wonderful cello/violin bow frog for you to replace the old or damaged one. Features - Color: Black - Material: Copper, metal - Bow Frog Size: About 5.00X2.40X1.50cm/1.97X0.94X0.59in - Screw Size: About 6.60X1.50X1.00cm/2.59X0.59X0.39in - The material is safe and durable, which is wear resistance and practical for the long time use. - It has a simple design, but very practical in use, giving you a . - Great replacement for your old, dirty or damaged bow frog, the bow button screws is included. - he design of Violin/Cello Bow Frog is simple but easy to use, giving you a good experience. - Easy to apply , very close to the string, the sound is particularly full and comfortable. Package list: 1 x Cello Bow Frog 1 x Screw