Keep It Clean's Pro series of ultra small wire systems feature an easy to install design and allow for expandability for future growth. Keep It Clean Wiring Systems use only the highest quality wire and parts resulting in the ultimate wiring kit. To make installation a snap all Keep It Clean kits included detailed instructions, color-coded and labeled wire, and plug n play connectors. In addition to that you have access to certified toll free tech support to assist you with your installation and future wiring needs. All Pro™ series harness included extra long leads making them the idea choice for longer vehicles such as trucks, wagons, and muscle cars!Keep It Clean's Pro series offers an ultra small fuse block that can be mounted in any position including under the dash or seat! Ideal for hot rods, race cars, and custom installations. Please note headlight switch knob is not included. If you need a knob as well please purchase either a traditional black plastic knob (part number HDLSWKP) or a high-class billet knob. (part number HDLSWKP)Wire your ride right the 1st time, wire your ride w/ Keep It Clean!