Invisible pen with UV light has the top quality. Harmless and flavorless ink, you can write everywhere: T-shirts, paper, skin and any surface. Permanent but washable. The magic pens can perfect for using the UV light to check dollar bills. This magical invisible ink pen will write your secret message: when your message is written by the pens, nothing you will see, but you can see message clearly with light from the top of the pen. That's the secret message pen. Different color plastic magic pen, but please note that the ink is the same color. Note: Children under 3 years are encouraged to use it under the supervision of parents.
