Kolstein Ultra Formulation Supreme Bass Rosin Soft KR-013 Low Powdering and Smooth, Easy Bowing Rosins, Resin

Exacting Research And Development Has Perfected Ultra Formulation Supreme Rosin In Several Grades: Violin, Viola, Cello Medium, Cello Normal, Bass In All-Weather, Soft Or Hard Grade And A Bass Duo-Pac Which Contains Half Moons Of Hard And Soft Bass Rosin In One Container. World Famous For Its Low Powdering And Smooth, Easy Bowing.