This kit comes complete with dust mask, 6' braided hose and 6 ounces for fast cutting compound. The air eraser can be used anywhere an abrasive is required to delicately erase; such as decorative etching on glass. Can also be used by the professional technician, manufacturer, hobbyist or for dental lab work, erasing color, and removing rust. Requires a compressor 1/3 HP or larger that can deliver up to 70 PSI. Paasche Air Eraser: Great for fine detail etching AEC Etcher: Carbide insert on tip lasts longer with abrasives Etching Tool: Can handle up to 240 Grit abrasive Air Eraser: Operating pressure 20 to 70 PSI Paasche Airbrush: Made in the USA