KIRKEY RACING ECONOMY LAYBACK SEAT. Commonly used in StreetStock, Production Saloon and Saloon Car Racing. MIG welded .125" think 5052 grade aluminum. Progressive rib bead adds extra strength. Seat side lowered for lap belts, bottom is contoured to support lower back and hips. Rubber moulding around perimeter of seat. Headrest reinforced with offset aluminum extrusion. Comes standard with shoulder belt and sub belt openings. Available in three (3) sizes 14-1/2", 15-1/2", 17-1/2".