D'Addario (Super-Sensitive) Bowmaster Bow Grip for Violin, Viola, and Cello

D'Addario (Super-Sensitive) Bowmaster Bow Grip for Violin, Viola, and Cello • LARGE size suits 3/4 to 4/4 violin and cello bows or bows for violas sized 13" and above. • MEDIUM size suits 1/4 to 1/2 violin and cello bows, or bows for violas sized 12". The Bowmaster is an innovative bow grip designed to encourage proper bow handling.