This is a pack of two Traxxas Heavy Duty Steel CV Rear Driveshafts. Traxxas Steel Constant Velocity Shafts deliver the ultimate in torque handling and efficient power transfer with gleaming nickel-plated shafts, combined with black silicone boots that add a custom look with improved durability. The outer U-joints are lubricated and sealed by a rubber boot for maximum protection against the elements, and the U-joint pins are captured so there is less worry about losing a pin.