Italian made OMG petcock for bikes with 16x1.0mm MALE threads on the gas tanks. Fuel valves have ON/OFF/RES with 8mm hose barbs. These Aluminum valves screw on with L/R threaded 16 X 1.0mm nuts. Petcocks can be used on many Italian bikes as well as some Triumph and BMW models. Petcocks are sold individually as Right or Left side and Please select the side you want from the pull down menu. Please check your gas tank threads before ordering. !!! Sold Each !!!