Professional is an excellent stringed instrument maintenance tool, which can help the friction between the bowstrings and make your instrument beautiful tone. It is a very important instrument maintenance accessory. The product has the characteristics of strong adhesion, no brittleness, no cracking, can better serve you, and will well meet your various needs. Features -Color:Coffee -Material: -Size:4.50X3.20X1.80cm/1.77X1.26X0.71in - Not brittle or crack, with good texture and less dust, the is safe to use. - The is widely used in violin, viola, cello string maintenance, making your instrument serve for a longer time. - Less dust design, strong adhesion, making it easier to apply on your violin strings. - It will help your instrument to produce purer tone, making your violin play better. - You can smear evenly on your string instrument, to extend its service life, giving you a better usage experience. Package list: 1 x