Invisible Spy Ball pen 4 Pcs with UV Light at Top

It is a magic fun pen for kids, after writing with the pen the ink will not be visible. You need to turn on the purple light on the cap to illuminate the writing area, so that you can see the confidential information clearly and perfectly.

Harmless and odorless ink. Smooth writing on pen, paper, skin and any surface. Permanent but washable.

4 reusable invisible magic pens with built in lights. Batteries included and installed.

Pens will come in a variety of colors to keep the activity exciting.