Fits perfectly?: Tight fit to the butane cylinder once you turn the knob and easy to screw into the stove. Make sure you have the adapter in the loose position and determine how it tightens before placing it on the fuel cylinder. ?Features? Converted to straight tank type, the camping gas tank adapter is suitable for split oven, safe and easy to control ?Safe and convenient? This cylinder adapter has an automatic locking function. When connected to a long cylinder, it will not leak if not connected to the stove. ?High quality materials? Made of aluminum, copper and high temperature resistant nylon, waterproof design, safe and durable.Light weight, easy to carry, essential accessory for outdoor camping, picnic, barbecue. ?Use? Convert has straight cans.Suitable for split type furnace.Safe and easy to control.Align the buckle of the adapter away from the gas tank, then press the connector steadily, and twist the connector clockwise. hourly until tight.