ITEMS INCLUDED – (2) Refillable Empty 1/4LB Propane Tanks and (2) Allen Keys 2mm (5/64") SAVE MONEY, SAVE TIME - Start saving money with our reusable and refillable 1/4-LB propane cylinders; refill from the comfort of your backyard; these cylinders fill fastest & safest with our commercial Flame King refill adapter – sold separately REDUCE WASTE - Join the eco-revolution! Keep disposable propane tanks out of the environment by using the Flame King 3.85 oz refillable cylinders SMART SIZED – Its small size is perfect, allowing you to hold it comfortably while torching whether you are welding/soldering or searing steaks, caramelizing sugar on creme brulees, melting cheese, and much more GREAT CAMPING BUDDY - Also perfect for small portable propane lamps and lanterns for camping SAFE TO USE - High-grade steel construction, X-ray and hydrostatic tested, powder coated for long lasting exterior protection - UL1769 listed valve COMES WITH AN ALLEN KEY to open the bleeder valve - patented valve designed for fast, easy, and safe refilling - adapter sold separately PLEASE NOTE: 1/4LB or 3.85 oz capacity is based on water capacity