Yamaha YSL-882O Xeno Series F-Attachment Trombone Lacquer Yellow Brass Bell Key: Bb/FBore: .547-inch Leadpipe: Fixed Leadpipe Material: Gold Brass Bell: 8-11/16-inch One-Piece Hand Hammered F Attachment Valve: Standard Features: Narrow Handslide; Mechanical Valve Linkage Case: Yes Mouthpiece: Peter Sullivan Replica Series Mouthpiece Shank: Large Finish: