Wireless Lithium Battery Charging-----Using 3.7V, 10040 battery, and equipped with a charger, the product is more and makes your use more convenient. All-metal body-----The body of the engraving pen is made of 304 stainless steel, which is more high-end, and the pen-like design makes the engraving more feel. Ergonomic handle design and accurate fingertip control design enable us to hold the carving pen like a pen, easily complete complex work, convenient control and use. One-button switch-----sensitive contact switch, stop at , more convenient operation. It can be used for engraving, drawing, dressing, cutting, grinding, drilling, DIY, etc. Wide Applications-----This engraving tool kit is suitable for the carving and grinding of jewelry, , Diamond, rosewood pear, beads, leather, metal, plastic and other materials. Solid wood storage box design --- equipped with a wooden box, it is convenient to store, protect the machine and prevent the loss of accessories. Material: Metal colour: silvery Package Contents: 1 x Engraver 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.