... Finial, Bracket, Ring, Clip, Hook and so on. 1.Tube Material:Iron, AluminumDiameter:16, 19, 22, 25, 28mm etc.Thickness:0.5 ... painting, Flame plating, Oil injection and Oxidation (aluminum)5.Hook Material:Iron, AluminumColor:Antique-brass, Antique-copper, Satin-nickel, Matte-nickel, ... , Spray painting, Flame plating, Oil injection and Oxidation (aluminum) Iron, Aluminum material Curtain rod finial