I purchased this mouthpiece three months ago, but I'm selling it because I've replaced my instrument and changed mouthpieces accordingly. There is a slight dent on the shank. The main feature of this mouthpiece, I believe, is its minimal air loss. I was using a PT64 on a B&S 3099, and I was concerned about the slight delay from articulation to the sound. However, this mouthpiece resolved that issue. I think this is likely due to the slightly narrower rim diameter. The cup depth is similar to a Bach 25. It's a typical German-style mouthpiece, so if you like that style, please consider it. Here are the specifications: Rim Inner Diameter: 31.8mm (measured) Throat Diameter: 8.2mm (measured) Weight: 206g (light) / 230g (heavy) Cup: Deep U/V hybrid cup Shank: American