Made of aluminum alloy material for durable and long lasting use. It's easy to use and install with long service life. With quality aluminum alloy fitting and solid construction, it won't rust with excellent durability. Professional design for vehicle fuel tunnel use. Feature - Color: As shown. - Material: Aluminium alloy. - Size: About 5x1.49x1.49cm - Made of aluminum alloy material, lossless and easy to install - Perfect for connecting fuel lines for car use. - Advantages: diesel resistance, gasoline resistance, aging resistance. - Solid, high temperature resistant and strong construction ensures its durability. - Material: exterior: aluminum alloy, interior: NBR rubber. - Use medium: diesel, gasoline, water, etc. (not applicable to methanol, because methanol will produce formic acid when electrified, which will cause corrosion inside the product and lead to product failure).