Hill RSHD Dark Rosin For Violin, Viola And Cello Hill Brand Rosin has long been one of the most widely used, and trusted rosins by students and professionals worldwide. The Hill RSHD Dark Rosin comes wrapped in its own padded shell, and this dark amber rosin is softer than the light amber rosin allowing it to grip the string more. Able to be used for violin, viola and cello bows, Hill Brand Rosin is a must have. Get yours today at Alto Music!