Trombone Mouthpiece for Tenor Trombone CONN 3 Inner Rim Diameter: Approximately 25mm Conn Description: A slender, deep bowl with a wide rim. Produces a very rich and round tone across all registers. Especially suitable for players with large lips. Ideal for all types of band performances. Believed to be a vintage mouthpiece manufactured around the 1930s. If you are interested, please consider. The shank has some plating wear. There are minor scratches due to age, but no dents that affect playing. Please understand that this is an antique item before purchasing. ⭐︎Please also read the profile.