The Flame King propane bundle includes a 3lb steel propane tank cylinder and a 4-foot propane hose adapter to connect the tank to outdoor appliances. The 3lb propane tank features an easy-to-read built-in gauge so you'll always know your gas levels. It is also designed with an overfill prevention device for safety. The steel construction has a powder coated finish to prevent rust. The tank is certified for transport in the US and Canada. Its portable size makes it perfect for camping, fishing, beach trips, and other outdoor activities where you need a grill or portable heater. The 4-foot hose adapter allows you to connect the 3lb tank to 1lb propane appliances like camp stoves, tabletop grills, and lanterns. Simply attach the black coupling nut to the tank, connect the hose to your appliance, then gradually open the propane valve to your desired flame height. The adapter hose gives you the flexibility to use small 1lb appliances with the larger tank capacity of the 3lb cylinder. Together, this propane bundle gives you a versatile, portable, and safe fuel source for all your outdoor cooking, heating, and lighting needs.