· Product Name:5ml Disposable Immunization Ad Syringe Best Price with CE ISO· Instruction:1. Tear off the single package, Fix the needle and take off the protective cap;2. Suck the medicament;3. Vent the air;4. Take off the protector from the plunger and then start to inject;5. After pushing the plunger to the "zero-scale", the plunger will be pierced, and then the syringe is unable to suck any liquid again;6. Fully depress the plunger to to activate auto-destruct mechanism.· How it works to achieve auto-destruct: Fully depress the plunger to to activate auto-destruct mechanism.EO Gas sterilized, non-n-free.