2ml Adjustable and Continuous Syringe Vaccinator

After using for a period of time, if the piston is twisted, the knob can be opened, the syringe is removed, and the piston ring is lubricated with oil or cooking oil. After using the live vaccine, the syringe should be sterilized and immersed and disinfected with a non-irritating and non-corrosive chemical disinfectant before cleaning.