Specifications:<br />Power: single phase，50-60Hz， Double insulated<br />RPM: single speed:20000， Variable speed:3000-20000<br />Collet: Collet Type:3.2mm， Spring chuck type:0.3-3.2mm<br />Dimensions:160mm*24mm(L*Diameter)<br /><br />Packet content:<br />1 x Manicure Pedicure Set Variable Speed Electric Nail Art Pen(Adapter is not included)