1) Material: a) Bundy tube (steel tube coated with copper): 8 x 0.71mm b) Steel wire: 1.4-1.6mm c) Bracket: 0.6-1.5mm 2) Structure: bendy tubes welded with steel wires 3) Painting: Cathode electrophoretic painting(black) We can supply the items according to customer's drawings or samples.