The Baja Low Back was designed for the off-road enthusiast who wants the safety of suspension and the comfort of Corbeau. What makes this seat special is the option for an adjustable headrest. The Baja Low Back has four vertical tabs on the bottom of the seat allowing it to bolt to a roll cage. If you plan on bolting to a Corbeau bracket or a flat mounting surface, you'll need to order a Baja Adapter (A22002F), which bolts to the bottom of the seat making it a flat mounting surface and eliminating the vertical tabs.