Antonio Giuliani CU-6 Concert Ukulele OutfitGiuliani (CU 6) Concert Ukulele Features All Giuliani Ukuleles are hand built using traditional methods. The model CL 6 Giuliani ukulele is constructed with the highest quality mahogany back, sides and top. The rosewood fingerboard ensures fantastic durability and beauty. Most ukuleles in this price category are constructed using lesser materials for the fingerboard, nut and saddle but Giuliani ukuleles are built using professional quality materials