This is a set of replacement Traxxas XX-Long Grey Plastic Ultra Shocks. There are two shocks per package. They come with damper oil, springs, and preload spacers. These shocks are the stock replacement for the rear shocks on the Traxxas Rustler, Stampede. Nitro Stampede, Nitro Rustler, and Nitro Sport. They also fit front or rear on the T-Maxx or E-Maxx.