Kirkey 37 Series Adjustable Seats are designed for use in 600 Micro/Mini Sprint and Mod Lite race cars. The 37 series seat is available in five widths (ranging from 12 to 16 inches) with adjustable vertical torso, shoulder height and head restraint adjustment. Made from .080-inch 5052 grade aluminum, each seat contains lap and sub belt openings with rubber grommets. These 10-degree layback containment seats accommodate all head and neck restraints.