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. A minimum curing period for a predetermined time is a requirement for all their bass rosin. In addition, such features as hand pouring and packaging in a specially designed roll-down silicon unique containerization , all contribute to the superior quality of their rich dark textured rosin.
As with all Kolstein Formulation Supreme Rosins, their bass 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.