We are a pioneer and founder derma roller producer in China. We have 12 styles and 10 needle length sizes. They are: 0.2mm,2.25mm, 0.3mm, 0.5mm, 0.75mm, 1.0mm,1.5mm,2.0mm, 2.5mm, 3.0mm. The needle counts we produce are 72/192/540 needles.