Whether you want to keep your poker cards hidden from friends or strangers, invisible ink glasses can help. These pens are filled with chemicals that, when applied to paper, produce dark marks that only someone with special lenses can see. The marks can be revealed with a simple ironing, by placing the paper inside a heater or by shining a flashlight on it. They can be used to reveal hidden messages on paper.
The best invisible ink sunglasses are made of high-quality materials and are comfortable to wear for long periods. This is important because if you are wearing the glasses uncomfortably, it will distract you during your game and increase the likelihood that you will lose. You can find these glasses in a variety colors that suit your style.
Online, you can find a variety of stores that sell invisible ink pens. These pens are easy to use and are great for writing secrets that you do not want strangers or roommates to discover. These pens are useful for keeping your privacy, and they are an excellent option if you live in a communal living arrangement or need to keep your secrets private at work. These pens are also easy to use, and they do not require any training to operate. Moreover, they are very inexpensive and affordable for most people. They are also very easy to find and can be purchased in a wide range of places, from novelty stores to office supply stores.