EXCELLENT MATERIAL: The suction pump bottle is made of thickened plastic, which is not easy to break and easy to clean; built-in double rubber seals for tight sealing; thick aluminum stock is strong, durable and reusable. WATERPROOF DESIGN: Built-in double rubber gasket can be firmly installed on the piston. Thanks to its locking design, it is sturdy and waterproof, so you don't have to worry about oil leakage. Easy to clean and maintain on a daily basis thanks to its removable design. Practical design: the suction pump has a capacity of 200 ml and is equipped with a clear scale, making it easy for you to check the suction status at any time. With simple movements, you can quickly and easily remove and pour liquids in either direction. WIDE APPLICATION: The transfer pump is suitable for pumping and filling engine oil, transmission fluid, motor oil, lubricant, brake fluid, coolant, water and so on. Widely used in marine, agricultural equipment, industrial transmission, automobile, motorcycle, RV, ATV and so on. 100% SATISFIED CUSTOMER SERVICE: We are committed to providing you with a satisfying shopping experience. If you encounter any problems or have any suggestions when using our hand oil pump, please contact us in time, we will provide you with satisfactory solutions.