Portable engraver machine for metal with precision diamond tip bitHow to Use:<br> 1.Put the batteries in the battery case and connect with the engraving pen.<br> 2.Push the red button on the engraving pen, and then it can start to work.<br> Specifications:<br> Color: Black<br> Material: Plastic #43; Diamond Tip<br> Battery Operated: Powered by 4 * AA Batteries(Not included)<br> Application: Metal/Wood/Glass/Stone/Ceramics/Hard Material Surface<br> Item Size: 16.0 * 2.3cm / 6.3 * 0.9in<br> Item Weight: 41g / 1.4oz<br> Package Size: 11.7 * 19.8 * 2.8cm / 4.6 * 7.8 * 1.1in<br> Package Weight: 126g / 4.4oz<br> Notes:<br> Please allow 1-3mm error due to manual measurement.<br> Do not touch the diamond tip when the engraving pen is working.<br> Package List:<br> 1 * Engraving Pen<br> 1 * Battery Case