1.materials of needle: Stainless Steel/ titanium 2.length of needle: 10 needles sizes 3.color: ... ,0.50mm,0.75mm,1.00mm,1.50mm,2.00mm,2.50mm,3.00mm4.For face or eyes care ... channels in short period of time,and form a high-quality delivery system among the epidermis, dermis and subcutaneous tissuse, ... skin soft, smooth, white and charming! 2. 633nm red light high-energy narrow-band, speed up healing:to ...