Denis Wick Cornet Mouthpiece, Gold-plated, Model: 2 (4881-2) - This mouthpiece is for lower cornet parts and produces a tone similar to that of a medium-bore trombone. Cup Diameter: 17.00mm Rim Width: 4.92mm Throat: 4.6mm Backbore: Open I purchased this new about a year ago. I have always used a Denis Wick 2L, and I bought this to replace my old one, but the playing feel was slightly different. I ended up purchasing a Heritage model 2 instead. I usually use a NY CLASSIC 1V, and I have used this mouthpiece about 5-6 times since I bought it. I will not be using it anymore, so I am putting it up for sale. If anyone is interested in purchasing it, please leave a comment. Thank you for looking.