[USB Charging Wireless Engraving] cordless engraving pen is equipped with a Type-C charging cable, which is convenient for fast charging, fully in more than 1 hour, and a long-lasting lithium battery, which can work continuously for 2 hours under normal conditions. Cordless operation is more convenient, USB can be connected to various USB interfaces such as charging treasure, charging plug and so on.[Complete and accessories] small engraving pen kit includes 30 grinding heads, 2 drills, 1 , 3 stainless steel cutting discs of different sizes, 2 engraving needles, 1 wrench and 1 socket head cap screw, easy to install and use Easy to learn and friendly for beginners.[ wide application]This jewelry engraving machine easy to carry,supports you to , , sand, polish, etch, grind, grind, drill, cut, and more on your metal, glass, ceramic, leather, wood, jewelry, stone, or figurine pieces for your ease and enjoyment Handmade .Great for marking jewelry or other small items like rings, pendants, etc.[high performance 25000 r/min] Working power up to 25W, 3-level speed range (5000-25000 r/min), the speed can be adjusted according to the different carving materials, the use of silent bearings can effectively reduce noise and vibration, practical, allowing you to enjoy artistic carving quietly .[safe to use] There are instructions in the product package, read the instructions use, this is not a baby toy, keep it out of the reach of the baby.Material: Metal + Plasticcolour: As shownPackage Contents:30 x grinding heads2 x drills1 x 3 x stainless steel cutting discs of different sizes2 x engraving needles1 x wrench1 x socket head cap screwOnly 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.