MUSEUNLIMITED 603 Mini Bow Violin Rosin, cello rosin,string instruments rosin,Violin accessories Strong adhesion: Rub evenly this kind of rosin onto the Violin / Viola bow hair, the violin / viola bow playing time will be extended more than twice. Sensitivity: Make the instruments which with the bow's playing pronunciation sensitive, pure sound, reducing noise. Clean: When playing, low dust. Volume: A single block of rosin use a longer time. Universal: Perfect rosin for violin, viola, cello and all others bows. Very easy to use.