【Perfect Set】This hand oil pump comes with 1/4" and 3/8" extension tubes to increase the working length. 2 transparent tubes fit together for easy suction or filling of liquids. Comes with 4 extra rubber gaskets, which can be replaced at any time if the original gaskets fail. 【Design】The transparent bottle body allows you to check the liquid and control the flow rate at any time. Clear scale lines, easy to read data, better control of extraction volume. The translucent cylinder indicates the volume and status of the liquid. 【High-quality material】The oil well pump syringe bottle body is made of thickened plastic material. Built-in double rubber gaskets for a perfect fit and prevent leakage. The piston skirt is made of thick aluminum for durability and long service life. 【Easy to Use】This manual oil pump allows you to quickly and easily extract and pour fluid in both directions through the extractor dispenser with a simple syringe motion. The hose and back cover can be easily removed