The compact handheld engraving engraver can use on steel wood electronics valuables collectibles leather computers etc. The engraver is fast easy to protect your valuables. The engraver is useful for you to making personalized gifts. - Can use on steel wood electronics valuables collectibles leather computers etc. Includes bonus replacement tip - Hold the engrave like a pencil with your thumb over the control button - Press the control button in with your thumb. Applying slight pressure press tool down on surface to be engraved - To turn off simply release thumb pressure from control button -The fast easy way to protect your valuables - It is not recommended that you engrave electronic media such as CD's DVD's etc because engraving on these materials may damage the media. - Powered by 2*AA battery (not included) - One extra pen tip included