derma pen needle cartridge 9 pin/ 12 / 36 needles nano electric derma stamp dermapen replacement head derma roller disposable needle

1/3/5/7 pinsused forpms(permanent make-up system)tattoo,eyelash, eyebrow, face or lips 9/12/36/42 pins used for mts(mirconeedle therapy sstem) nano needle(square&roudess)using the advanced biological nanometer,more safe, no harm to skin,painless, non-invasive