It comes with 30 metal grinding bits, one ceramic grinding bit, and three cutting saw blades of different sizes. It can be used as an electric engraver or a small rotary tool! This mini engraving pen features three adjustable speed settings with stable rotation, suitable for different materials. Its compact and portable design makes it easy to carry around, letting you enjoy a relaxing time of handmade art. This engraving pen is rechargeable and comes with a USB charging cable. Once fully , it can be used wirelessly for up to 30 minutes, allowing you to complete your engraving projects with ease and enjoy a sense of freedom. It has a built-in safety protection circuit board and a smart overload protection chip. When the working resistance is too high, it automatically cut off the power to prevent damage to the electric engraving pen. Unleash Endless Creativity on Surfaces - From wood, metal, glass, and plastic to ceramics, the Engraving Pen invites you to transform any material with , professional designs. Your ideas, our engraving pen-limitless possibilities await! Wireless Engraving Pen Kit Color: As Shown Material: Metal Package Contents: 1*set Wireless Engraving Pen Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.