Amrein-Titan D-Lubeck 12C trombone mouthpiece. I purchased this used and added it to my collection, but I am selling it to organize my belongings. ■ Model: Amrein-Titan D-Lubeck 12C ■ Plating: Gold titanium plating ■ Size: Equivalent to Bach 12C ■ Condition: No scratches or dents. ※ Due to the gold titanium plating, the response is good and the sound is clear and focused. ■ No box.