The all new Nagisa Auto “D-LOCK” Super Low Seat Rail adds ‘zero-play’ of the seat rail and slider with a Double Locking Mechanism. Adjustable low positions, and will fit most standard size bucket seats. For Honda S2000, the D-Lock double locking mechanism features seat rail locking for both sides when using the adjustment slider. This is ideal for a firm zero-play hold onto the seat for competitive driving environments. Slider uses ball bearings for smooth slide adjustment. Universal fitment will fit standard size bucket seats. This seat rail has a low profile and fits a variety of seats. (Recaro RSG, Recaro SPG/ SPG3, Sparco Corsa-Rev2, Most Bride seats)