... AluminumDiameter:16, 19, 22, 25, 28mm etc.Thickness:0.5, 0.6, 0.7,0.8mmLength:1-6mColor:Antique-brass, Antique-copper, Satin ... injection and Oxidation (aluminum)Package:1 piece of tube has 6.0m length, and 20 piece for a carton. PlasticBad ... smelting, Spray painting, Flame plating, Oil injection and Oxidation (aluminum)5.Hook Material:Iron, AluminumColor:Antique-brass, Antique-copper, Satin-nickel ...