Pure metal shell, space silver color, not abrasive to prevent fading. With excellent speed adjustment, according to different operation to achieve the perfect Rotational Speed the original motor from Germany could get upto 27000r/min., the result is a powerful, twice as normal permanent makeup machines. With low as not any general level of noise, adjustable needle length exact to control from 0.5mm~2mm. Adopts professional standards with disposable parts processing to achieve International Health Standard.