This is a 9.5oz (270g) can of Hobbico Airbrush Propellant. FEATURES: Much lighter and more portable than using a compressor No electricity required. Propellant formula is ozone-safe Compatible with most airbrushes INCLUDES: One 9.5oz (270g) can of Hobbico Airbrush Propellant REQUIRES: Attaching regulator valve to can SPECS: Weight: 9.5oz (270g) Contains: 1,1,1,2-Tetraflourethane HFC-134A (811-97-2) COMMENTS: Use only with adequate ventilation. Avoid contact with eyes and skin. Contact with liquid can cause frostbite, wear protective gloves and goggles when handling.