Full-bodied Tone with Extra Darkness For more than half a century, Schilke Music Products has delivered stunning mouthpiece designs time and time again. Take the 51D, for example. This large shank trombone mouthpiece has a medium-large cup, which a strong set of lungs can use to deliver a dark, robust tone with plenty of volume. The Schilke 51D’s standard rim shape promotes comfort and stability. Schilke also told Sweetwater that the 51D is well suited for euphonium players. And with Schilke’s impeccable quality control, the 51D Large Shank Trombone Mouthpiece can be found in the instrument cases of today’s finest performers. Schilke Music Products: a heritage of impeccable instruments and accessories The brainchild of former Chicago Symphony principal trumpet player Renold O. Schilke, Schilke Music Products quickly rose to prominence in the classical brass industry. Worldwide recognition ensued due to the impeccable quality of Schilke's instruments and accessories, so much so that Renold himself was tapped by Yamaha as a consultant to introduce a new line of brass instruments to the United States. While the Schilke family no longer manages the company, Schilke Music Products instruments and accessories are still manufactured to the highest quality. Their products have been utilized at some point or another by trumpet legends such as Dizzy Gillespie, John Madrid, and Jon Faddis. Now's the time to join the ranks of these performers and so many more — call your Sweetwater Sales Engineer today to purchase your Schilke mouthpieces!Schilke 51D Large Shank Trombone Mouthpiece Features: Dark-sounding mouthpiece with full-bodied tone Medium-large cup and standard rim shape