Product Description: Material: aluminum alloy and rubber Color: black Outside Diameter: 8mm / 0.3 inch Length: about 15cm / 5.9inch Sphere diameter: 4.5cm / 1.8inch Package content: 2 * fuel primer pump 1.High Quality Materials: The pump ball is made of high quality rubber and corrosion resistant metal. The large ball-shaped structure can provide strong suction, not easy to tear, and long impact time. 2. Quick drain or fill: The design of the check valve ensures that the liquid flow is ensured by pressing after connecting and placing on the pipe. The filling container should be low in height and can be quickly emptied or refueled. 3.For a variety of liquids: Pressure pumps are suitable for fuel, engine oil, gasoline, diesel and gear oils, and not suitable for corrosive liquids or potable water. 4.Simple and efficient tool: The fuel pump is suitable for most engines, most commonly used for marine outboard or inboard engines. After replacing the fuel filter, fuel is introduced into the fuel pump. 5.What you get: 2pcs x Fuel Line Pump. If you have any questions about the products, you can always contact us and we will provide you with the best customer service.