Key Features Spy Pen Invisible Ink and UV Light Suitable For Spies Aged 6+ Get One For You and Your Friends For Secret Messages Even 007 Would Be Jealous! Spy Pen One of our newly upgraded invisible ink pens with integral UV blacklight in the cap. Most spies will immediately realize the value of invisible messages that can only be revealed by the UV light. Send secret messages and keep secret notes that only you can read. Use it to write in your diary! Extra security invisible ink. Bond\'s Favourite Stationary