This 500mW DIY desktop blue laser engraving machine is ideal for amateur laser engraving usage with grayscale printing,low-light positioning and freedom positioning functions.It only need you to connect it to the computer,then you can print any pictures your like with your own creativity. Specifications Material:stainless steel and acrylic Working Voltage:DC 12V Laser Power:500mW Engraving Area:40X50CM(maximum) Size:56x44x16CM Control software: benbox software support power can be adjusted, weak light positioning Engraving Material Note 1.can engraving materials:wood,bamboo,plastic,paper,leather,bank card,rubber 2.can not engraving material:metal,stone,ceramic,shell,light-reflecting material, transparent material Cutting Material It can only cut foam,paper,thin leather material. Note: !In the process of using, please wear professional protective glasses !Forbid children to play !Suggested that the laser light in the case of focus, the power is too strong, do not use strong light to illuminate the skin !Avoid the use of flammable objects or gases in order to avoid causing a fire or explosion Data download link：https://drive.google.com/open?id=0B-KRH6E-ysnRWm02LWVsWjYyT28 Package include: 1x DIY Desktop Mini Laser Cutting/Engraving Machine 1x Laser goggles