Features: 1.This siphon pump can quickly and easily transfer fuel, water or other liquids from one container to another. 2.Frequently used as a hand pump in boats for fuel supply to the out-board engine 3.Easily operation, with this hand pump you can prime the fuel for easier start 4.Works on the vacuum principle, fast and easy handling. Easy to clean 5.With 1m long flexible PVC hose in each side, pure copper interface, durable and oil-proof Specification: Features:_x000D_ _x000D_ This siphon pump can quickly and easily transfer fuel, water or other liquids from one container to another. _x000D_ Frequently used as a hand pump in boats for fuel supply to the out-board engine. _x000D_ Easily operation, with this hand pump you can prime the fuel for easier start. _x000D_ Works on the vacuum principle, fast and easy handling. Easy to clean. _x000D_ With 1m long flexible PVC hose in each side, pure copper interface, durable and oil-proof. _x000D_ _x000D_ Specifications:_x000D_ Material: PVC + Copper + Rubber_x000D_ Color: Black + Transparent Color_x000D_ Total Length: 2.1m/82.7"_x000D_ Diameter: 8mm/0.31"_x000D_ Package Weight: approx. 94g_x000D_ _x000D_ How to Use:_x000D_ Make one end head of the tube into the needed to extract liquid, firstly, pinch flat rubber ball forcedly to vent the air, then blocked the export of the pipe with fingers, and release the rubber ball, wait until the spheres bulging recovery slowly, and when the liquid was pumping up to fill fully the rubber ball, you can release the fingers, and repeat one or two times of this operations, it will form a continuous gravity._x000D_ _x000D_ Package Included:_x000D_ 1 x Hand Pump PackageList: