T-king(TM) DIY USB Laser Engraving machine Laser Engraver Photo Direct Engrave 77cm Blue 300mw with Software Application:wood,bamboo,plastic(phone shells),leather(such as wallets),cardboard;Can not Engrave on Metal The laser engraving area: 70*70mm .Operation system:XP Win7 Win8,Comes with Software Do not need tedious operation as other engraving machine,no need to generate G-code, just open the picture and engraving. Low-light positioning, grey engraving and reset function. No requirement for the size, cuft and weight for the engrave items.