Color:1PC Magic Invisible Pen With UV Light Invisible Write Detective Party Gift Description: This pen uses invisible UV ink to make awesome magics. The look on your players’ faces when the ink is revealed will be epic. Perfect for adding those secret touches to maps or letters that your players pick up along their journey. The pen has a little built-in UV light you can use to read the invisible messages. Ink is slightly visible in sunlight. The UV ink from the Moon Rune Pen is very slightly visible in bright direct sunlight, but under normal artificial light or candlelight, it is completely invisible. Easier to write with two. We recommend buying at least two pens as it makes writing and drawing a lot easier. Because the ink is completely invisible it can be difficult to figure out what has already been written, so use the light from a second pen as you draw with the first. The pen includes 3 LR41 batteries. Length: 13.2cm/5.2" Package included: 1×Invisible Pen
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