Check out my other items. Be sure to add me to your favorites list. His listing is for a Winslow saxophone ligature. It is a #15 model, which is designed to fit fatter METAL alto sax mouthpieces, such as Otto Link (Super Tone Master), Dukoff (Super Power Chamber), and Lawton. I'm sure there are others that it will fit, but these are the most common.
It will be too big for slim metal alto pieces such as Berg larsen, Beechler, Guardala, etc. It will, however, fit slim metal tenor pieces, although that isn't really what it was intended for. This ligature is in very good used condition. It has brand new pink bumpers installed. There are 4 bumpers installed on it presently.
Unfortunately, I did not get any spare parts, nor a cap, with it. The item "#15 WINSLOW SAXOPHONE LIGATURE for DUKOFF, OTTO LINK METAL ALTO MOUTHPIECE" is in sale since Sunday, June 9, 2019. This item is in the category "Musical Instruments & Gear\Wind & Woodwind\Parts & Accessories\Ligatures & Caps".
The seller is "greatlakeswinds" and is located in Milwaukee, Wisconsin. This item can be shipped worldwide.