This is an optional Hot Racing Losi Baja Rey and Rock Rey Rear CV Splined Drive Shaft, an upgraded heavy duty splined star drive axle kit for the Losi Rock Rey and Baja Rey.
Features:
CNC machined #45 hardened carbon steel ends and CV joints
Hard anodized aluminum 6 spline slider tube
Blue anodized aluminum pin capture rings with rubber o-rings to prevent movement. Design eliminates CV pin setscrew.
Rubber dust boots to help protect slider from the elements