Thank you for viewing. I am selling a trombone mouthpiece. * willie's Willie's U3 STEINER 5M * Large shank (long shank) silver plated * With box Retail price: (Body) 36,300 yen This is a mouthpiece for trombone. * Cup inner diameter: 25.51mm * Throat diameter: 7.2mm * Cup depth: Medium * GAT acoustic treatment applied It's equivalent to a Bach 5G size. It's a long shank, slightly longer than a standard shank, but it can be used with a regular large-bore trombone. There are some minor scuffs, but there are no noticeable scratches or dents. Personally, I think it's a mouthpiece that is very easy to control, easy to play from high to low notes, and produces a rich and warm tone. It has undergone GAT acoustic treatment, so the air flows smoothly. If a Bach 5G is too tight for you, please try this one. Manufacturer's description: willie's delivers the most advanced mouthpiece that anyone can recommend, packed with 10 years of experience! Ultimate... (Ultimate) Universal... (Versatile) Utility... (Easy to handle) It has a newly designed U-shaped cup and is equipped with rims supervised by each player. You can get high controllability, a mellow and rich sound, and a uniform resonance in all ranges. It has received high praise from many players. Type...Trombone Accessories/Parts...Mouthpiece