Features Key: BbBore: .508-inchLeadpipe: Two Interchangeable--NY (Longer) and LA (Shorter)Leadpipe Material: Yellow BrassBell: 8-inch One-Piece Hand-HammeredBell Material: Yellow BrassHandslide: StandardHandslide Material: Yellow Brass Outer Drawn and Chrome-Plated Nickel Silver Inner DrawnF Attachment Wrap: N/AF Attachment Valve: N/AFeatures: Interchangeable Leadpipes; Lightweight DesignCase: SLC-891Z Wood CaseMouthpiece: 45C2Mouthpiece Shank: SmallFinish: Lacquer Description Product Description The Yamaha YSL-891Z Custom Series Trombone was developed with famed trombonist Wycliffe Gordon and Andy Martin. The YSL-891Z featues a .508-inch bore with two interchangeable leadpipes--the NY leadpipe is longer and was developed with Wycliffe Gordon while the LA leadpipe is shorter and was developed with Andy Martin. The lightweight design of the YSL-891Z makes this an excellent instrument for jazz and commercial work. The Yamaha YSL-891Z Custom Series Trombone includes a case and mouthpiece and is available in lacquer (YSL-891Z) finish.