20pcs 9/12/36pin Screw / Bayonet port Needle Cartridge For Auto Stamp Derma Pen Dr.pen MYM Microneedling

20pcs Screw port / Bayonet port Replacement For Derma Pen Micro needle 9 pin / 12 pin /36 pin / nano Micro Nano Needles Tattoo Needles Item Type: Bayonet Port: 9 Pin / 12 Pin / 36 Pin Screw Port : 9 Pin / 12 Pin / 36 Pin Applications : Just replace the needle. Needle length is adjustable to different sizes depend on the areas and purposes of the treatment. It is more convenient to treat narrow area such as nose, around eye or mouth. Features: It is an eletronic automa