In order to keep safe and sanitation, needle as replacement have to change once each customer finish treatment.
Fake needle can not ensure 5pin always get same dosage easy to casue swell.
So normal vital injector needle each single piece all packed in a sterilized bag then 20 pcs packing into one box.
For the 2nd generation 5pin needle new add a flip to keep it more stable.
Also the 2nd generation also need to replace the filter.
This " C" shape filter use to prevent dosage access the device to keep machine more durable.
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