DAddario Natural Rosin Dark for Violin viola cello vr300All natural ingredients combined in a very special process make D'Addario Natural Rosin perfect for either horsehair or synthetic hair bows. Handsome packaging fits nicely in cases and the unique plastic channel provides an easy grip for students.D'Addario Natural Rosin offers premium performance at a great value. Light and Dark rosin options available.Light or dark rosinAll natural ingredientsPlastic channel provides easy gripSuitable for horsehair or synthetic hair bowsDesigned and manufactured in the USA at our New York facility to the most stringent quality controls in the indusVR300 VR300 VR300 VR300 VR300 VR300