... .2,0.25,0.3,0.5,0.75,1.5.2.0,2.5,3.0mm with CE derma roller ... .2,0.25,0.3,0.5,0.75,1.5.2.0,2.5,3.0mm1, Photon therapy Theory:Biological ... .The growth of muscle and skin cell is 5 times normal growth speed,improving organism resistance and ... to accurate part of skin. 0.2,0.5,1.0,1.5,2.0mm Changeable tip2.specificationReplaceble derma roller 405 ... .2,0.25,0.3,0.5,0.75,1.5.2.0,2.5,3.0mm 3.Contact WayName:Paul ...