Current category: Spy gadgets

Spy pen with disappearing ink is the latest spy equipment on the market detective. Looks like a pen that was the most ordinary ink world. I actually would give you fooled. A pen that can write in ink visible only for a moment. Best of the ink is that it disappears completely after 8 hours and leaves no traces. So if you have to write a message that can be read only once, this pen is that perfect