【S.E.Shires Vintage 5GS】 This is a mouthpiece from S.E. Shires, highly regarded worldwide as a handmade American-style trombone. The Vintage model is based on the classic vintage American mouthpieces, and its design also considered the needs of the Japanese market. The size is 5GS, which is a standard size similar to Bach's equivalent. It's for a large shank and can also be used on large-bore euphoniums. While there are some scratches and dirt, there is no damage that would interfere with its use.