Feature: Good quality material Nylon for fuel/gas and other common fluid types, it is durable, long life for use. Good durability and corrosion resistance. Easy installation: The end of barb connects with fuel pipeline or hose, time-saving and high efficiency. Connect the fuel line pull out simply for disconnect while pressing the lock button. Specification: Size: 7.89mm SAE Suitable for: 5/16" (8mm) Nylon Hose Total Size: 78x20x19mm / 3.07"x0.79"x0.75"(L*W*H) Hole Diameter: 5mm / 0.20" Shape:Straight Material:Nylon Color:Black Package Include:2 x Fuel Line Hose Quick Release Connector