Function: The grooves on the surface are non-slip for holding and using, convenient for assembly and disassembly, widely used as a hand pump in boats to supply outboard motor fuel. Premium Material: The fuel oil pump is made of high quality rubber and metal, which is anti-corrosion, oil-proof and durable. This is a rubber product, please do not store this item under direct light sunlight or other harsh environments. Easy to use: the arrow on the rubber ball shows the direction of the oil. The rubber bulb has built-in one-way oil inlet valve and one-way oil outlet valve, which can prevent backflow. It can be directly extracted in 3-5 seconds, which is easy and convenient. Widely used: The siphon pump is very suitable for transporting gasoline, oil, water and other common liquids. It can be used to change the oil of cars, lawn mowers, hedge trimmers and other machines, and can also be used as a water changer for home aquariums. Tips: 1.Not suitable for sea water or corrosive liquids. 2. The liquid you want to get rid of must be higher than the bucket you are dumping into. 3.Please keep the hose in the container and not just put it on the surface. 4. Only for vehicles without a fuel protection net Properties: Used for transporting petrol, diesel, oil, water, etc. It can be used to fill the fuel system of cars, boats, motorcycles, etc. There are built-in DC valves on both sides of the rubber ball for direct extraction, easy and convenient. Widened rubber ball, stronger suction, concave-convex pattern design, more non-slip. Specifications: Size: 12mm Material: rubber + aluminum alloy Opening pressure: 0.2 bar Operating pressure range: 0.2-6 bar Operating temperature range: -30 -130 Install the oil pump according to the inner diameter of the oil pipe. 2. Push the rubber part with your hand to suck the oil out of the tube. Monitors and light effects, the actual color of this item may vary slightly from the color shown in the picture.