Giddings Mouthpieces is a brass mouthpiece specialist based in the Seattle area on the West Coast of the United States. They came up with a completely new idea of using stainless steel and titanium for mouthpiece materials, and after repeated research and discussions with famous players, they created a finished product. The FH5 is an American-style mouthpiece. I bought and used it when I was using a Conn 8D. Rim 16.9mm Rim Width 3.4mm Cap depth 29.3mm Bore 5.7mm No dents, case included.