TCP Global Brand 5 Piece Mini Cleaning Brush Set; Brushes come with a key ring and are about 3.5" long. Also includes a How-To-Airbrush Resource CardIdeal for cleaning small passages in all airbrushes, spray guns, tattoo equipment, etcThe 5 Brush diameters vary from about 2, 2.5, 3.2, 4 to 5 mm. They are made of durable stainless steel with nylon bristlesEasily clean paint off all the hard to reach areas in an airbrush, spray gunor any other item with small orifices that need cleaning like the fluid tip, air cap, paint cupTattoo Artists can use the brushes for cleaning their equipment like tips, nozzles, grips and tubes