... optional Welcome to BH:)Whole Set Curtain Rod IncludingHome decoration telescopic curtain rod Materialiron, aluminum, wood,zinc or customizedDiameter13/16/19/22 ... . material : iron, zinc alloy, aluminum alloy, plastic , resin ,wooden, crystal 2. diameter: for the rod 13mm,16mm,19mm,22mm,25mm,28mm ... any color with good quality. Thank you for your visit! Hot Sell Curtain pole finial,curtain ball finial