A tie (short for necktie) is a shaped length of material, designed to passed around a shirt or blouse collar, knotted under the chin and fall down the front.
Ties in spanking art
Ties in bondage
Neckties can also be used in bondage scenes, although they are primarily an accessory. Ties are sometimes seen as a form of bondage, and many comparisons are made to a leash. When tightened, ties can slightly threaten air supply, similar to a bondage collar.