Head bondage, in BDSM play, includes all techniques used to apply control to the head of the subject. It may refer to one of several techniques:
• It may refer to encasing the head in a bondage hood, a head harness or a box, or the use of a device such as a Scold’s bridle (also referred to as a branks). A head harness may include a blindfold and/or gag. The encasement may include or be supplemented by a wide, stiff posture collar round the neck to restrict movement of the head.
• It may refer to the use of rope or other material to achieve control of the head. In particular, it may refer to pulling the head backwards by hair bondage or a rope attached to the back or top of a hood or head harness. It is also possible to use a rope attached to a blindfold or gag, but this is usually less secure and may cause excessive pressure on a small part of the face; in particular, with a gag, the corners of the mouth may be injured.