Professional is an excellent stringed instrument maintenance tool, which can help the friction between the bowstrings and make your instrument a more beautiful tone. It is a very important instrument maintenance accessory. The product itself has the characteristics of strong adhesion, , no brittleness, no cracking, can better serve you, and will well meet your various needs. Features -Color: Yellow -Material: -Size: 6.00X4.00X1.90cm/2.36X1.57X0.75in -It has strong functionality and can help the instrument to perform maintenance work well. -The product has fine workmanship, good craft details, making it satisfy your long term use requirements. -It has a simple operation method and is easy to store, which brings you convenience to extent. -Professional and high class can make your instrument have a more beautiful tone. -You can buy this professional and practical at an and reasonable price. Package list: 2 × Violin Rosins