Quality guaranteed from Vio-Music. Other sellers may sell different bows using this listing. * Logo "Vio Music" Engraved Above the Frog. Will Make Full Refund for NO Logo "VIO MUSIC" Bow. * 4/4 Viola Bow. Octagonal Stick. Nickel/Siver Mounted, Fullly Lined. * Pernambuco Wood, Mongolian Horse Hair * Ebony frog