BAZHOU Mini Electric Engraving Pen,Engraver Pen Cordless Electric Precision Etching Engraving Carving Pen Name Writing Carve Tool for DIY Handcraft, Steel, Jewelry Product Description:Engrave a perfect gift for Wedding, Birthday, Christmas, Christening, Baby shower, etc. Can be used for Wood, Metal, Stone, Plastic, Glass or Ceramic. Simply press the control button with your thumb, applying slight pressure to the surface of the item you are engraving.Can be used for Wood, Metal, Stone, Plastic, Glass or Ceramic. How to Use:1. Unscrew the bottom of the Engraver Pen and Insert 2xBatteries (Non-Included). 2. Hold the Engraver like you would hold a Normal Pen. 3. Hold the Power Button down with your Thumb as you Engrave the Surface. 4. Ensure Light Pressure is always applied and the unit is held at a slight angle. color: blue Size: about 17*3CM Quantity delivered: 3 pieces Warm prompt: 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering. 2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding 3. Only the above package contents, excluding other products.