Steel stretcher bar; aluminium legs and edging; seat shell of perforated steel : powder coated Optional: stretcher bar, legs, seat shell and edging : metallic antracite or silver 98 Optional: seat edging, table support and legs : polished or bright chromed Upholstered seat and back; you can choose between slits between seat and back parts or leave this space open Plastic glides Optional: antiskid glides