A free swing door closer is a type of door closer that is used to open and close doors without the need for a knob or handle to open the door. Instead, the door is opened by pushing or pulling against it. Free swing door closers are often made of steel or aluminum and are designed to be strong and durable. They are often used on doors that need to be automatically opened, such as in shopping centers or airports, to prevent people from having to open the door manually. Free swing door closers are also suitable for use on heavy doors or doors with a large surface area, as they are able to support the weight of the door while providing a smooth and controlled closing action.