Kolstein Rosin

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 our 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 our rich dark textured rosin.