Thank you for viewing. Vincent Bach CORP. 6 3/4C small shank trombone mouthpiece. From the deep period. Diameter 25.00mm, medium shallow cup. Due to its age, there are signs of use and dents overall. The shank is worn down as if it has been shaved, so it may be loose depending on the instrument. Since there is no box, the item will be wrapped in bubble wrap and shipped via Mercari delivery. Please feel free to ask any questions. Thank you. #trombone #trombone #euphonium #euphonium #mouthpiece