I am selling this item because I used it for a C tuba for a while, but I will not be using it anymore. There are some scratches and shank insertion marks from use, but there is no noticeable damage such as shank dents, dings, or discoloration. There is no box. [From the seller's catalog] ・30G *A mouthpiece in the Gaybe style based on LASKEY30G for B.C tubas, with a slightly bowl-shaped bottom, allowing for a slightly more resistant playing experience than the Helberg style. The 30H consumes less air, offers a variety of tones, and is not very particular about the instrument it is paired with, making it a very versatile and orthodox mouthpiece. Rim inner diameter: 32.9mm Bore: 8.2mm Cup: Deep V-cup with a slightly bowl-shaped bottom Universal shank