1) Materials: brass, zinc alloy, iron 2)Plating: gold, nickel,silver 3)Delivery time: usaully take 5-6days via DHL,UPS,TNT,OCS Tie bar features:1) Materials: brass, zinc alloy, stainless steel, iron, pewter, aluminum2) Plating: gold, anti-gold, pearlized gold, silver, anti-silver, pearlized silver, nickel, anti-nickel, pearlized nickel, black nickel, anti-brass, anti-copper, chrome , dyed black , ...