Denis Wick SM3.5 SP Inner cup diameter: 26.40mm Rim width: 6.80mm Bore size: 7.62mm Purchased around autumn of last year. There are marks on the shank from insertion (see photo), but it has only been used about twice. If you would like additional photos, please let me know in the comments. Instant purchase OK. ※Please refrain from posting this page on social media, etc. #Deniswick #Euphonium #Mouthpiece #Brass instrument #Trombone #Tuba