The lightweight door closer is made of commercial grade stainless steel, spring operated, fully automatic closing, giving you an easy and safe life, protecting your door and lock. The safety spring door closer features smooth closing technology that eliminates the spring force when closing the door, allowing you to pass easily. Universal fire rated door adjustable for all types of medium sized doors - left and right swing doors, wooden and metal doors, residential and commercial doors, external/inner closers, fire rated doors. Adjustable closing speed, easily adjust the tension of this safety spring door closer. Convert your hinged door to a self-closing door with these door closers to help you control closing speed and protect your lock. With a foldable support arm, you can use it or not at any time. The door closer is easily mounted on the door with the included screws. The function of the door closer is to reduce the force when closing the door, protect the door from damage, and reduce noise., Manufacturer: MOOILKO