For alto saxophone. This is a Selmer Concept mouthpiece. I mainly play tenor, but I've had frequent opportunities to play alto recently, so I owned this. I'm selling it because I'm updating my mouthpieces. I received this from the previous owner as a professional selection. It hasn't been used that many times, but the logo is fading. I used it with a patch, so there are no major scratches on the body. There is a slight color difference around the patch area. Please feel free to comment if you have any questions.