【USB Rechargeable】Our engraving pen is rechargeable and comes with a USB cable. Its cordless use can last up to 30 minutes of standby time after a full charge, making it easier to do better engraving work. It can be powered by any device with a USB interface. 【Multifunctional Engraving Kit】This manual engraving kit can be used as an electric engraving machine or a small rotary tool, allowing you to carve, personalize, or decorate almost any surface in seconds, such as metal, plastic, glass, ceramic, wood, leather, diamond, stone, and more. 【Perfect Gift Idea】This portable and compact engraving pen is easy to carry, allowing you to easily enjoy jewelry making time, easy to use, and suitable for beginners. You can also design gifts for your loved ones with its special stencils, such as Christmas, Halloween, birthday, Easter, and Ramadan. You can give gifts by processing wood, metal, glass, plastic, and leather products. Contents: 1 Engraving Pen 1 Carbide Scriber 30 Diamond Drill Bits