The Carlisle Brass Concealed Chain Spring Door Closer is a reliable and adjustable door closer. When the door is opened, the spring recoils and forces the door to shut. The chain tension can be adjusted, allowing for a good degree of flexibility in setting the door closing rate. This product is available in both square and radius end versions. It has been tested to meet the standards of BS EN 1634-1:2008 and comes with a 10-year mechanical guarantee, providing peace of mind for its users. The door closer features a chrome finish, giving it a sleek and modern appearance.