Features: High quality string rosin designed for violin, viola, cello, erhu and other string instruments. Apply the rosin to the bow of the violin to increase the friction of the bow and the strings. High viscosity makes string instruments give out the sound sensitively. Good grip and sound penetration, ideal for various steel and synthetic strings. Low dust characteristic makes the rosin harmless to human body. Specification: Condition: New Item Type: Violin Rosin Material: Rosin Color: Yellow Rosin, Black Box Size: Approx 37x19mm / 1.46x0.75in Weight: Approx 40g Package List: 1 x Rosin 1 x Box with Cloth Package List 1High quality string rosin designed for violin, viola, cello, erhu and other string instruments. 2Apply the rosin to the bow of the violin to increase the friction of the bow and the strings. 3High viscosity makes string instruments give out the sound sensitively. 4Good grip and sound penetration, ideal for various steel and synthetic strings. 5Low dust characteristic makes the rosin harmless to human body.