After injection,when you pull the plunger,the needle will be back in to the barrel. It's able to prevent it from hurting people by covering hypodermic needle with barrel
Luer Lock
Sterilization:EO
1ml,2/3ml,5ml,10ml,20ml
After injection,when you pull the plunger,the needle will be back in to the barrel. It's able to prevent it from hurting people by covering hypodermic needle with barrel