This Rosin can be applied to the underside of bridges in other musical instruments, in order to prevent the bridge from moving during vigorous playing.
And this rosin can avoid the slipping between the violin bow and the string to ensure violin can make a sound.New and high quality
All natural, non – allergenic, less dust
Give you clear and pure tone
For violin, viola, cello and all others bows
The rosin in box from Austria