Double Horn in F/Bb. Similar to the 8D but with a smaller medium throat bell. • All nickel construction with lacquer finish • Kruspe wrap. • Change valve located before the valve cluster • 0.486" (11.89mm) bore • 12.25" (311mm) medium throat bell • Tapered rotors & bearings • Fully mechanical change valve • Adjustable levers • Conn 7BW mouthpiece • Conn 7514L deluxe hardshell case