... 1) diameter:13/16/19mm 2) material:resin 3) curtain rod color:black 4) surface treatment:spray-paint Welcome to BH ... Detail Description1. material : iron, zinc alloy, aluminum alloy, plastic , resin ,wooden, crystal2. diameter: for the rod 13mm,16mm,19mm,22mm ... : electroplating (nickel, zinc, chrome, copper ,antique and gilding), painting(black, white ,red ,blue and as your request.)4. packing: blister ...