This is a replacement Team Losi Racing 4x54mm TiCn Front Shock Shaft, and is intended for use with the Losi 8IGHT 3.0 1/8 buggy and Losi 16mm front shocks. The improved titanium carbon-nitride coating provides an incredibly hard and tough surface that lasts longer, with higher abrasion resistance and a lower friction coefficient than Ti-Nitride coatings.