How to use it:1. You need a inflatable valve, a empty flat container, a liquefied cylinder, and a electronic scale. 2. make that flat container connection valve is charging. 3. Connect the liquefied cylinder interface to the cylinder, unscrew the cylinder valve and check whether there is escaping. 4. Let the liquefied cylinder lie down or , and connect to flat container, Put the connected flat container on the scale, open the liquefied cylinder knob, then you can see liquefied flow in the pipe. 5.After charging, shut all the valves. This propane refill adapter is designed for your flat container from liquefied cylinder with it Safe and easy to control. with this adapter, refill your flat tank. the container is Not including ! Colour: Material:Metal Package Contents: 1 x metal tube 1 x Adapte Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.