KIRKEY RACING STANDARD CONTAINMENT SEAT. Commonly used in MiniStock, SuperStock and Stockcar Racing. MIG welded from .100" and .125" thick 5052 grade aluminum. Head & Shoulder Restraints are adjustable 1-1/2"vertically. Reinforced head and shoulder restraints for additional support. Energy absorbing impact padding on head restraint. Head designed for easy entry and exit from race car. Designed to accommodate all 5 or 6 point seat belts. Molded rubber inserts for all seat belt openings. Easy to install black tweed cover. Contoured high-density foam bottom provides complete leg and inner thigh support. .Available in four (4) sizes, 13", 14", 15" and 16".