... 2.Easy to operate 3.Exquisite and convenient 4.marking materials of metal, chinaware, marble, glass, jade, etc DescriptionThe engraving pen is ... almost all the hard materials, such as metal. ceramic, glass, plastic, marble and timber. It not only plays the classification function in ... )Dimension150 x 65 x 40mmNet weight250gPacking weight300g engraving pen for glass and ceramic