Antonio Carbon Fiber Viola Bow by Antonio Strad. $95.00. The Antonio Carbon Fiber bow has a number of features which include silver winding, a leather grip, Parisian eye, Ebony frog, and a Mother-of-Pearl slide; all of which makes for excellent balance, nice control, and optimum sound. Real horsehair and low price round out this perfect choice for students looking to try a great carbon fiber bow. Full-size only.