10/50/100pcs Electric DERMA PEN Needle Cartridges 9pin/12pin/36pin/42pin nano micro needles for derma micro needling pen 10pcs

Feature:

Just replace the needle.

Needle length is adjustable to different sizes depend on the areas and purposes of the treatment.

It is an eletronic automated micro needle,with guides that adjusts needles length.

It is hygienic,convenient,and safe.

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