Thank you for viewing. This is an Otto Link 5-star rubber mouthpiece for alto saxophone. The ligature and cap shown in the photos are also included. The 5-star opening is 1.78mm. For reference, a Meyer 5 has an opening of 1.8mm, so it's almost the same. Regarding the item, I played it before putting on a mouthpiece patch, so there are some teeth marks. However, there are almost no dents, so I think it won't be noticeable if you put on a patch. There are also some scratches from attaching the ligature, so please take a good look at the photos and refrain from purchasing if you are concerned. Please consider it. Thank you. Please refer to the profile section before purchasing.