The XO XO1646RL Bb Flugelhorn features a hand-hammered, 6-inch-diameter bell made from rose brass, as well as durable monel valves with a two-piece valve housing, a nickel-silver leadpipe, and a third valve trigger with a mini-ball linkage system. Finished with an eye for detail, this flugelhorn looks as good as it sounds. Included Accessories So you can customise the setup of the flugelhorn, XO includes an extra set of heavy bottom caps, metal finger buttons and supple springs. Not only that, the XO1646RL comes complete with a matching brass instrument case so you can safely lug it to gigs and rehearsals.