It is an automatic injection device used for vaccinating cattle and sheep. You can safely inject medicine with adjustable dosage for cattle and sheep vaccinations.

High quality : High-quality plastic raw materials, non-toxic and harmless. Design for livestock, such as cattle, sheep, pigs, chickens, etc. Disinfect the syringe before use and clean it after use, it can be reused many times.
Unique function : Unique locking function. It is good for your pets.
Usable : 30,000 times repeated use, no technical obstacles.
Easy to use : This endless syringe is very easy to use. If the plunger was not smooth after prolonged use, it can be lubricated with olive oil or other cooking oil.