Bruno Tilz is a German mouthpiece specialist founded in 1971. The BAKO model is based on the mouthpiece from the Bach Mount Vernon era and was developed independently by the manufacturer. It's slightly smaller than a Bach 12C, making high notes easier to play, with a good sound and easy control. For detailed sizes, playing feel, and sound, please search on Net Brass. There are no major scratches or dents that would affect playing. Please refrain from comments asking for a price reduction. If you are interested in used or new mouthpieces, please search on Net Brass. net-brass.com #Mouthpiece