This engraving machine supports you to engrave, sand, polish, grind, drill and more on your metal, glass, ceramic, wood, jewelry, stone, for your ease and enjoyment fun This engraving tool and lightweight aluminum; the ergonomic design of the pen body provides you with precise fingertip control Easy to use and can let you customize everyday objects to create personalized accessories and gifts by anyone from beginners to professional technicians The engraving pen has a 4.2V battery. It can be charged by connecting to type-c interface which is faster and easy to use Great for marking jewelry or other small items like rings, pendants, Manufacturer: Yhplxyuus