What is another word for iron collar?
Pronunciation: [ˈa͡ɪ͡ən kˈɒlə] (IPA) 
Iron collar, also known as neck shackles or neck irons, is a type of restraining device typically used in prisons or during slave trade. There are various synonyms for the term iron collar, including neck brace, neck band, neck ring, and cervical yoke. These terms refer to a device that is designed to encircle the neck of an individual, often with additional chains or locks, to restrict movement and prevent escape. Other variations of iron collars include stocks, which restrain both the neck and wrists, and pillories, which restrain the neck and hands. Regardless of the name, all of these devices serve the same purpose of confinement.
