... .all sizes are available 4.professional OEM service derma roller,beauty roller ,micro needle roller ,skin needle roller.high quality ,usd5.0 /setThe process is ... press into your skin,in mild pressure!5.clean the derma roller after use. store it in dry & clean place.Notice:1 ... free to contact us for more details !LOW SHIPPING COST ! Derma Roller for face/body beauty hot sell product