- This Copper Wire Nozzle Cleaner / Brush is perfect for cleaning clogged nozzles on 3D printers, airbrushes, and other delicate equipment. - The flexible copper wire bristles are gentle enough not to damage the nozzle, but stiff enough to remove even the most stubborn clogs. - The brush is also durable and long-lasting, so you can use it over and over again. - It is available in a variety of sizes to fit different nozzle diameters. - Some additional features include a convenient loop for hanging storage and a protective cap to keep the bristles clean when not in use.