This manual oil pumping built-in negative pressure locker locks the negative pressure, and the suction power is continuous. hose, flexible, flexible to use. Suitable for DIY small maintenance, such as car engine, factory machine maintenance and more. Features -Color: Assorted. -Material: Rubber, ABS. -Size: About 26.00X10.50X10.50cm/10.22X4.13X4.13in - Capacity: 2000ml. -Interface specification: quick connect is 8MM interface. -Pressure range: up to -300MPA. - This manual oil pumping unit is small, portable and which will be your practical choice. - Oil storage bottle design, strong and durable, strong stability and precise scale. - Good workmanship details, not easy to rust, sturdy and durable, can serve you well. - The built-in negative pressure locker locks the negative pressure, and the suction power is continuous. - Scope of application, can be used to extract motor oil, but not corrosive such as brake oil/gasoline. Package list: 1 x vacuum negative pressure tool 1 x 2L oil pot 1 x 5MM oil suction 1 x 6MM oil suction 1 x 8MM extension