Our fuel canister refill adapter set is made of high quality copper and aluminum alloy, sturdy and durable, not easy to break Butane canister refill adapters have self-lock function. If camping stove not connected, the adapters will close automatically, which can your safety. With premium sealing gasket, the gas refill adapter can effectively prevent gas from leakage All of these gas refill adapters can be and smoothly opened and closed to connect small gas tank, which are convenient for outside camping and picnic Wide Application: This refill adapter set is suitable for split type camping gas tank, and perfect gift or friends who like camping, BBQ party, outdoor picnic or outdoor adventure. They can be placed in your travelling backpack or camping bag Colour:Black+orange+silver Material:Aluminum Alloy+ Copper Package Contents: 1 x butane canister converter 1 x propane to butane adapter 1 x gas refill adapter 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.