1.4 OZ, Oxygen Cylinder, Designed For Use With Oxygen/Fuel Torches That Produce A High-Intensity Flame, Perfect For A Variety Of Job Site Projects Including Brazing & Light Welding, Medium To Heavy Soldering, Cutting Thin Sheet Metal & Surface Hardening Of Metals, Constructed Of Durable Steel, The Slim Lightweight Cylinder Is Easy To Grip & Maneuver.