Kolstein’s Formulation Supreme Bass Rosin is composed of the finest ingredients, created through a high degree of product control in strict accord with the developed formula - rich dark textured rosin. Kolstein rosins have the feature of indefinite shelf-life; that is, it will never dry out and crystallize. Once used, the rosin will show a continual wetting action allowing for easy powdering on the strings and instrument.
Fully acclaimed by international soloist and ultra-professional orchestral and recording artists.