... Mirco needle Skin Roller,beauty roller,skin care roller,skin roller Microneedle therapy uses a knead rod inlayed with 192 slender steel needles, accompanying with ... need to cure, it can puncture more than 250,000 micro vessels on the epidermal within five minutes, form a efficient ... is stainless steel. Net Weight:18g Gross Weight: 68g. Dr Roller Micro-needle roller system