Chair on fixed trestle base in powder-coated aluminium, mounted on self-locking castors (of the same colour as the base). Shell in polypropylene made with post-consumer recycled materials, mixed with virgin material, with upholstery in fabric, leather, coated fabric or customer’s own material. The upholstery can be separated and replaced by technical personnel, since it has been applied without the use of glue. Optional armrests in the same colour as the base are also available, equipped with pads in polypropylene or in the upholstered version.