What are Invisible Pen Covers?

Invisible Pen Covers are the unappetizing, the unpalatable, the unsavory (pun intended) cousins of traditional pen covers. They are not for the faint of heart or stomach. These are for the truly adventurous, the daredevils of the pen-world.

Imagine a pen so covered in an unending expanse of blankness, a chasm of nothingness, a void that stares back at you with an unblinking gaze. This is what we call an invisible pen cover.

Read on for reasons not to try this at home.

Or, if you're still feeling bold, explore the fascinating history of Invisible Pen Covers.