Formed By A Shell (Seat And Backrest) Integrated In One Piece, With A Double Body On The Backrest. It has a cavity in the seat for draining liquids. 3 transverse ribs and 3 longitudinal ribs. It has a rectangular space in the upper part of the seat in low relief to house the plate with the identification number of the place. Injected In High Impact Polypropylene (No Break No Blush), Color Master Batch And Antistatic Additives. Against UV Rays And Whitening (Optional) With Textured Surface Finish. It has a thickness of 4.5 mm. And 2 nipples in the area of contact with the structure for its fixation, or with the three hidden fixing points, visual, anatomical, and ergonomic design for greater comfort.