【Brand Features】 ARTIGIANO & VIOLIN viola bows, viola bow round bow 4/4 size The AD-500 series is a new generation carbon fiber bow that uses a dry carbon stick. It features a quick response and rich, clear sound that sets it apart from conventional carbon bows. Comes with an ARTIGIANO & VIOLIN original bow case. - Brand: ARTIGIANO & VIOLIN - Material: Dry carbon, silver - Type: Viola bow