If you paint with a paint gun or airbrush you know difficult it is to clean your gun after each use. It is very important to keep the gun clean and well maintained, otherwise your next painting job could be affected by an ill-performing paint gun. The Concourse Master 21 piece Paint Gun cleaning kit helps you ensure your gun is clean and working at optimum performance. Each kit includes everything you need to clean the air cap, needle, nozzle, passages and outer body. Works with all types of paint guns and air brushes.