FS Racing 538542 Pro Shock Set Aluminium (4pcs) Rustler 2wd Brushed (37054 1) Upgrade Parts if your interest is kindled Union Pacific if your interest is kindled in those rail vehicles dedicated to maintaning the processes and efficency of the railway as well as freight and customer travel Features:Increased servo mounting stiffness improves steering responseHigh quality aluminum servo mount plate is anodized red for increased durability and cool ARRMA looksBlack anodized aluminum servo mount posts provide a solid connection between the servo mount and the chassisMolded composite frame adds stiffness to the assembly and holds the servo mount screws in placeMolded composite servo mount spacers in 1mm and 2mm thicknesses included to fine tune servo mounting heightIncludes:(1) Red Anodized Servo Mount Plate(4) Black Anodized Servo Mount Post(1) Composite Servo Mount Frame(2) 1mm Servo Mount Spacer(2) 2mm Servo Mount Spacer This is a set of FS Racing 538542 Pro Shock Set Aluminium (4pcs)