Air Eraser Kit 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, removing rust or smooth castings. AEC-K Kit Includes: One AEC Air Eraser with Hardened Stainless Steel Tip, one jar of AEX-6 Fast Cutting Compound, one-4' Air Hose with Moisture Trap, Wrench, Hanger, 5 Disposable Respirators and Parts Sheet.