Integral seat (seat and back in one piece), has a cavity in the seat for the drainage of liquids and perspiration. Injected in high impact polypropylene with color pigment and antistatic and UV additives (optional). With rough texturing throughout its surface, it has a thickness of 4.5 mm. Anatomical And Ergonomic Curves For Greater Comfort Structured With Multiple Transverse And Longitudinal Ribs. The seat is attached to the structure by means of four rivets to the structure consisting of 2 channels and two Ø25.4 mm round tubes. (1 ") Cal.16. At both ends for installation to the floor. All metallic parts are joined together with micro-wire welding that does not leave slag. Finishes The structure previously degreased and phosphatized is protected with polyester paint, micro-sprayed thermoplastic Epoxy applied with electrostatic equipment and baked at 200 ° C. The shell is attached to the structure by means of 8 Hexagonal Head Pins with an integrated star type roller that are protected with a tropicalized finish.