NEW KIRKEY 18" RACING INTERMEDIATE SEAT & BLACK COVER, 10 DEGREE LAYBACK, LATE MODEL, MODIFIED, STREET STOCK, GRAND NATIONAL, PURE STOCK, IMCA, UMP, ETC. Brand New Kirkey 18" Wide, 10 Degree, Intermediate Racing Seat & Cover. The Kirkey Part # on the seat is 39900. * In Addition We Have Paired this seat with Kirkey Part # 36911: Black cover for 18" intermediate seats. Features: | * 10 degree layback seats with dual rib supports | * TIG welded,.125" Thick, 5052 grade lightweight aluminum construction | * MIG welded inside for added strength | * Offset aluminum extrusion around perimeter of the seat adds extra strength & safety | * Seat bottom contoured in rear for multi-angled seat position mounting | Raised in front for thigh support | * Pre-cut seat belt slots | * Cloth covers | * Contoured, high-density foam bottom provides complete leg & inner thigh support | * Extra thick, high-density foam on rib supports for comfort & safety | * Strong, Snap-on design Note: ***How to measure for a seat: In the seated position, using a straight edge, measure across the hips at the widest point. This measurement is the width of seat that you need. For more Kirkey racing seats, racing equipment, and many other high performance auto parts visit the Southwest Speed Amazon Store