Set of 6 chairs plus 1 chair strafor year 70

Vintage designer from the 70s. 12 chairs. Strafor industrial furniture conference chairs. Tubular steel base chromed in u. Wooden monohull seat, seat and back. Thick coated fabric foam, cotton braided in caramel color. The set of 12 strafor chairs 1970's period office furniture. Are all in very good condition. Chromes without oxidation seated, metal structure backs, good wooden shell fastening, thick foam sitting and back fabric braided caramel color, light brown uncurded overlay. Robust and comfortable chair.