It is often used as a hand pump on a ship to supply fuel to an outboard motor. The large diameter draws fuel faster, the longer pure copper joints seal better Works on the vacuum principle. For transferring gasoline, , , and other liquids With a blue clip, when used, it can be directly fixed on the edge of the tank, without the whole time, saving time and effort Cleaning is and easy, using this hand pump can make the fuel easier to start Product Specification Tube Length: Caliber: 10mm Material: PVC Color: transparent and black Note: It is necessary to have a height, suitable for high places or the area is lower, and after starting pumping, you can remove the red pump and drain some water. Package Includes 1 x Hose 1 x Rubber Ball 1 x Blue Clip 1 x White Flow Switch Only The above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed