The Rovner Star Series Ligature is a ligature compatible with alto and tenor saxophones. - Model: Rovner Star Series Ligature - Compatible Instruments: Alto saxophone. Tenor saxophones are also compatible if they have a slim-type mouthpiece. By changing the screws, it can be adjusted to either a forward or reverse tightening style. I purchased this a year ago and used it for about a month, but it didn't produce the tone I was looking for, so I'm selling it while it's still in good condition. You can play with ease, feeling like your breath becomes the sound, and it produces a bright tone. I highly recommend it to beginners. Thank you for looking.