- includes 7 pens in 7 different colours (red, yellow, green, black, blue, purple, pink red). Battery included and installed.
- Harmless and tasteless ink, healthy toy for your kids! You can write anywhere: T-shirts, paper, skin. Permanent but washable. (Please do not use on a special surface, such as: glass or smooth plastic film, etc.)
- For invisible messages writing. Send invisible messages and then make them visible again when you light up the messages with UV light. This allows hidden messages to be sent unrecognized.
- Kids love detective espionage games with these secret pens. Invisible pen brings you a variety of fun activities such as treasure hunting.
secret pen with UV light, invisible writing - 7 PIECE SET