Rubber + Aluminum Alloy: The manual oil pump is made of high quality rubber and aluminum alloy. The rubber material has excellent resistance to oil, diesel and gasoline. Corrosion resistant and durable. Excellent Design: The low permeability material design can prevent fuel evaporation and the encounter of heat and cold. The connector is stepped, so that the leather hose can be easily installed without falling off. Easy to Use: Insert the oil inlet hose into the bottom of the oil tank, insert the oil inlet hose into the prepared oil change tank oil tank, press the rubber ball 3-5 times, the liquid will flow out automatically. Faster operation and higher efficiency. Universal Manual Fuel Pump: The manual transfer pump can easily dispense gasoline, diesel, oil, water and other liquids. It is an ideal tool for quickly filling various liquids. Wide application: The gasoline hand pump can fill fuel for easier starting and is widely used in lawn mowers, Peugeot, Renault, ships, helicopters,