Integral Seat (Seat And Back In One Piece) Professional Anatomic Injected In Polypropylene Plastic Resin With Impact Resistance With Antistatic And Non-Bleaching Additives (Non Blush) (Optional). Textured on the upper side with a minimum thickness of 4 mm. Structured On The Lower Back Face With 3 Continuous Transverse And 4 Longitudinal Ribs Through The Seat And Backrest With Non-slip Texturing On The Upper Front Face, The Backrest Has A Wide 80 X 240mm Window For Effective Thermal Transfer. 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.