Can not engraving material:metal, stone, ceramic, shell, light-reflecting material, transparent material Cutting Material: It can only cut foam, paper, thin leather material. In the process of using, please wear professional protective glasses! 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!Don't update the firmware Package include: 1x DIY Desktop Mini Laser Cutting/Engraving Machine 1x Laser goggles. The item "3000mW Laser Engraving Machine DIY Logo Marking Printer Engraver Cutting 65x50cm" is in sale since Saturday, July 13, 2019. This item is in the category "Business & Industrial\Printing & Graphic Arts\Screen & Specialty Printing\Engraving". The seller is "chinstse" and is located in Altadena, California. This item can be shipped to United States, Canada.