... .marking materials of metal, chinaware, marble, glass, jade, etc DescriptionThe engraving pen is a new type of electronic engraving instrument. It is small ... of almost all the hard materials, such as metal. ceramic, glass, plastic, marble and timber. It not only plays the classification ... alloy)Dimension150 x 65 x 40mmNet weight250gPacking weight300g electric engraving pen for glass