Traxxas 7061 X 1/16 GTR Hard-Anodized Aluminum Shocks (PTFE-coated bodies and TiN shafts) (set of 4) Hard-anodized, PTFE-coated aluminum GTR shocks for 1/16 scale Traxxas vehicles Titanium Nitride (TiN) coated shafts offer silky smooth damping and reduce friction Change ride height with the turn of the adjustable collar Completely assembled (without springs) and includes shock oil (set of 4) Use Traxxas stock and hop-up replacement parts to get the most out of your Traxxas RTR vehicles