The Yamaha YHR-668NII Professional French Horn in the key of Bb/F double, Kruspe-style wrap, .472" bore, 12-1/8" large throat, yellow brass bell, nickel-silver inner and outer slides, separate Bb tuning, water key, nickel silver finish. Includes case, HR30C4 mouthpiece, and premium rotor oil. All Yamaha wind and brass instruments come with a limited 5-year warranty.