Package Size: 58.0039.0015.00. It can offline use by USB flash disk on Micro computer. The operation is simple, clear and easy to understand, you can use our engraving machine to efficiently engrave the pattern you want.Can be carved: wood, paper, plastic, leather, bamboo, bone teeth, painted metal surface, etc. Can Not be carved: metal, ceramics, glass, stone, etc. Transparent and reflective things can not be carved directly, you can use a black whiteboard pen to paint the engraving area, then carving, erase it after finish carving. Feedback is very important to us. It is impossible to address issues if we do not know about them! Faction is our ultimate goal. We work hard to earn your trust and future business. A If you receive a defective item, you may return it or ask for a discount. Due to time zones, our reply to your questions may not be immediately. If it's non-workdays, please kindly be patient and wait till Monday. This item is in the category "Business & Industrial\Printing & Graphic Arts\Screen & Specialty Printing\Engraving". The seller is "fast-ship-item" and is located in this country: US. This item can be shipped to United States.