The Stanley 3 1/2" Adjustable Spring Hinge Door Hardware is a commercial-grade brass product with a gold color finish. This unit includes fasteners, a hinge pin, and is made of metal. It has a satin finish and is designed for use in doors. The hinge length is 3.5 inches, and it is manufactured in the United States by Stanley. With a durable construction and a commercial setting in mind, this spring hinge is a reliable choice for secure and convenient access to your home or business. *** 3 unopened packages