Circuit Sports double lock side mount seat rails for S13/S14 1989-98 Nissan 240SX. Seat rail has the same mounting spec as Bride FG (Bucket) double lock seat rails and Nagisa Super Low double lock seat rails. Sliders consist of ball bearing slider for easy sliding action adjusting the seat position along with double lock feature that is required for most sanctioned professional racing events. Kit comes with 2 sliders, heavy duty steel coated side mount brackets and all hardwares for bolt on install. Limited stock available now!