Product DetailsMade of aluminum alloy and copper,solid and firm to useUsed to change the long or round gas tank to flat gas tankThe stove head is screwed to the air outlet,Then insert a long tank,select the 1/5 loop and lock itColor:sent in randomAuto-off when not connecting the stoveDiameter:3cm/1.18”Package Included:1xStove ConnectorNO Retail Box. Packed Safely in Bubble Bag.