... specification as following:1, Material, Stainless steel hinge, copper hinge, aluminum hinge, iron hinge2, Finish, plating colored zinc ... , copper, blue zinc, nickel, gold, brass, chrome, zinc, spray paint ... mother hingeMaterial, stainless steel mother hingeFinish, GP,SPRAY,PSS,AB,WIRE DRAWING,RED OR GREEN ANCIENT BRONZESize, 2.5", 3", 4", ...