The disposable sterile roller needle is mainly used by a handle and a syringe (two kinds of different patterns) which can be switched by a simple rotation to meet requirements of a variety of situations. In addition to treating common skin problems, the roller needle can also treat stretch marks, obesity lines and deep pits. Moreover, it surprisingly stimulates hair growth by injecting liquid medicine into the scalp. Model specifications: 192pins, 270pins, 540pins/ 0.2mm,0.3mm,0.5mm,1.0mm,1.5mm,2.0mm Packaging specifications: 1piece/box Validity period: Three years from the date of production Usage: The beauty roller needle is used to roll on the surface of the skin. With its needle pricking the skin, lots of small pinholes will form on the surface and then the skin will be repaired again according to these small injuries, which helps to promote skin metabolism. Meanwhile, it can also make scars and color spots lighter than before. The roller needle will wo…