RCA clip cords are an essential component of a tattoo machine. They provide the connection between the power supply and the machine, allowing for electricity to flow from one to another. This allows for tattoos to be completed with consistent results and reliable performance. 

The most common type of RCA clip cord is made up of two insulated wires that are connected by metal clips at both ends, which create a secure electrical connection between the power source and tattoo gun when clamped together. The insulation helps protect against electric shocks while also providing flexibility in positioning during use. Additionally, these cords come in various lengths so they can be used on different sized machines or workstations without having to purchase additional equipment or adapters. 

Finally, it's important that any RCA clip cord being used is checked regularly for wear-and-tear before each use as frayed wiring can lead to dangerous situations such as electric shocks or fires if not addressed immediately upon discovery.. To ensure safety and reliability always inspect your cables prior using them! With proper care these cable should last many years with no issues whatsoever; however if you do notice any signs of damage replace your cable immediately!