BIQU 2500mw Violet Light DIY Double Motors Laser Engraving Machine High Engraving Speed Laser Engraver This violet 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 Can be processed material :wood ,plastic, bamboo, ox horn,opaque plastics ( phone case ) , some leather(eg, purse) ,seals , cardboard , paper, bank cards, discount cards ( non-metallic ) , rubber,photosensitive seal,sponge paper etc Can not be processed material :Metals(no matter thick or thin), stones, ceramics, glass,jewelries, reflecting material, colourless and transparent material, soft material Made by Aluminum & Acryli material, good looking on appearance, more stable Support Windows 7,XP, install the software to your laptop or desktop to engraving your picture