D Z Strad viola bow Model 508 Brazil Wood (Brazil Wood Viola Bow) Equipped with genuine white, unbleached Mongolian horsehair, the Model 508 is a great choice for any player. Brazilwood, nickel/silver mounted, octagonal stick with Ebony frog and fleur-de-lis inlay Traditional Frog made from Polished Premium Ebony The turning screw features a unique 8-eye design with abalone button.