Black Plastic pen filled with dissapearing ink

This pen has an unique feature, and it is that it’s filled with ink that dissapears, and leaves no trace after around 120 minutes. You can practice your handwriting without wasting paper sheets, or you can even do pranks with it on your friends, or your teacher.  The ink chamber that holds the special ink, looks identical to any other “regular” ink chambers, allowing you to play pranks on your friends.

This product contains one pen, and five loads of “Dissapearing Ink”. (1x pen 5x ink chambers)

Materials: Mostly plastic.