Thank you for viewing. I purchased this and tried it for about two weeks, but since another mouthpiece suited me better, I am now selling this one. It produces a full, rich sound, and the gold rim feels very comfortable in the mouth, so I think it's definitely worth trying. Vincent Bach 1x Gold Rim This is a well-known, excellent mouthpiece. It has an even wider diameter than the 1c, and a thicker sound suitable for orchestras. The gold rim also provides a comfortable feel. "1X" Inner Rim Diameter: 17.00mm Rim Thickness: MW (Medium Wide) Cup Depth: D (Deep) It has the same shape as the [1] from before 1970, with a slightly smaller cup and wider rim than the current [1].