B.TiLz 5GS Euphonium, Trombone Mouthpiece (Large Shank) Used for about a month on a euphonium and then stored. In my subjective opinion, the shape is slightly shallower than a 5G, and I felt it was a little easier to play. There are no noticeable scratches or stains, and I think it's in a clean condition. There is no box, so it will be protected with bubble wrap etc. before shipping.