a small compressor to exclusively use airbrush very well manufactured and that exudes strength (see in use if it confirms this) 1 toggle switch with two positions: one with 3 bar pressure and automatic shutdown, and the second with 6 bar pressure without auto shutdown. Quiet enough to use indoors. Proper packaging. On delivery I had a fright on seeing the condition of the package manhandled by mail. but whew, that was just the outer carton; there is a second package that contains the device that it was intact.