Alexander 8 Price: ¥16,500 (tax included) Rim Inner Diameter: 17.5 Throat Diameter: 3.7 Depth: 28.0 European Shank Alexander's basic line. Characterized by a brilliant and rich tone. I bought both the 8M and 8F and liked them both, so I bought the 8, but it didn't suit me, so I'm selling it. As it's a standard-sized mouthpiece for the horn, if you're unsure, whether for high or low registers, it's probably a safe bet to choose this model. Please note that this is a used item, so no returns, refunds, or exchanges (3N).