10pcs Ultima A7 Needles Electric Derma Pen Needle Cartridges Sqaure Nano Needle Tips For dr.pen auto microneedle Therapy A7SN

It is an eletronic automated micro needle,with guides that adjusts needles length.
It is hygienic,convenient,and safe.
Advantage:
【Less Painful】The diameter of dr pen cartridge is 0.18mm.
【Safe and Clean】Accordance with ISO/CE standards, Our needle cartridge are sterilized with gamma radiation and sealed in a hermetic pouch and are guaranteed to be 100% contaminant-free upon delivery.Each cartridge is sterilized and individually packed for Dr. Pen A7
【Original Cartridges】For lawful rights and interests of extensive consumer of guarantee,our company ensures that what be sold a product is genuine quality products without exception.