Selmer saxophone mouthpiece. Model number: S90 180 Compatibility: Alto saxophone This mouthpiece has smooth breath support and excellent response. It produces a bright, core sound, and I think it's well-balanced, making it easy to use in brass bands or for solo performances. It's the most popular mouthpiece among junior high and high school students and is easy to handle. I used it for about six months. I used it a few times in performances, but I've changed to a different setup, so I'm selling it. There are tooth marks and minor scratches, but it's in overall good condition. Instant purchase is welcome. I will pack it carefully and ship it.