- Brand: willie's - Model Name: AST Milky Cup (Inner diameter 17.5mm, bore diameter 4.9mm, U cup) - Shank Type: STD (Standard) shank fits many horns such as Wenzel Meinl, Hans Hoyer, Wilson, Paxman, and Holton. This item was purchased in November 2024 at a wind instrument specialty store, DAC, for 33,000 yen. I used it for about a month, but I felt it didn't suit me, so I am selling it. As this is a used item, please understand that there are signs of use, such as scratches on the shank.