Plastic straight design, 88 model clarinet mouthpiece. Wider opening than 5RV, with a longer facing. Responsive and easy to control across all registers. Material: Ebonite Tip Opening: 1.09mm Facing: M Type: Profile 88 I am selling this because I changed my setup. There is some discoloration from the ligature due to aging, but it should not significantly affect playing. I will thoroughly disinfect it before shipping.