These universal extension cables are sleeved with the heatshrinkless sleeving method in a three-layered protective design. The outer layer uses ultra-density weaving, providing protection and style without sacrificing flexibility. The middle layer provides resistance to acid, alkalis, fuel, moisture, and mildew. The inner-most layer uses 16AWG wire for better heat resistance than industry standard 18AWG cables. The kit offers users more flexibility for easy installation as well as a clean look. The cables are heat-shrink free to ensure high-quality cable assembly and support for high currents in order to achieve superior performance and stability.