Diamond Head's DU-250 Series is available in soprano, concert and tenor models. The select mahogany body and neck are presented in their natural color with a pleasing, satin finish. The edges of top and back are bound in White and the engineered tonewood fingerboard features low, smooth Nickel-silver frets and pearl position dots. Guitar-style, geared tuning machines turn smoothly and hold pitch securely. Genuine Aquila Nylgut strings offer the finest tone and the longest string life.