1、Wide Application: This pen is widely used in lettering marking effect on the appearance of hard materials such as metal, porcelain, glass, plastic, marble, wood, stone, handicrafts, jewelry, porcelain and so on. 2、Portable: Comes with small size and light weight, this pen is easy for you to carry in and out to help with your work. Very convenient! 3、Fine Workmanship: This pen is well made with delicate workmanship and high speed rotation, providing efficient and stable work. you can take it home with confidence! 4、Aluminum Alloy Material: Made of aluminum alloy, this pen is durable, wear resistant and never rust, comes with a long life span. 5、Easy Grasping: The lettering machine is in a similar size of a pen and you can hold and use it as using a pen.