This automatic nail dryer is designed for professional nail art. Feature: Shell Marterial: Steel casing + PP Voltage: 110-120V 220-240V Frequency: 50Hz/60Hz Power: 200W Color: black Packing Size: 65x44.5x49cm (12pcs) Using step: Take the pulg out & put in to socketSwitch on the "Power" button to start the machine,it will blow the warmer wind automatically whrn put hands under air rntrance.Others:1 This product exported to USA,Italy,Holland,Britain,Australia and other countries.2 We guarantee each product will be checked befor sell .3 We also sell a lot of sililar products,Varieties with good quality.4 If there are any bad quality ,you canreturned the good back or change another one without pay. Formoreinformation,pleasebefreetocontactus.