The Corbin Russwin DC3210m54 Door Closer is a heavy-duty, universal mounting door closer made of durable cast iron material. It features a sleek silver color with a “Aluminum” painted finish, adding a stylish touch to any commercial door. This door closer does not require batteries and is designed to ensure smooth and efficient operation for your business or industrial setting. With its reliable brand reputation and high-quality construction, the Corbin Russwin DC3210m54 Door Closer is a dependable choice for your commercial door hardware needs.