It was substantial - 'thicker than a Bic'; and I was amazed that he even had it. Would think they would give him nothing more than a two-inch pen to use; and then make sure he handed it over; before leaving room. . .I believe he put in back in his pocket; but not sure.
I was thinking; what if before he entered 'chamber'; he were handed a poison pen/one that could shoot a letahal gas; or one that was sharp enough to do damage should he decide to act up. . .