One of the best ligatures on the market, the "Optimum" by Vandoren fits a standard size hard rubber alto mouthpiece and has three separate contact plates, easily interchangeable, that allow you to get the sound that you want. Gold-gilded brass and great manufacturing truly make this the "optimum" in saxophone ligatures!
This one is used in good condition although somewhat corroded from use. It has all 3 plates with it!
Fits Selmer S80, S90, Meyer, Otto Link and most other hard rubber mouthpieces with a similar diameter.