We are talking about the ten regular blue ink BICs in the middle. Someone decided to take different color para cord and place it inside the BIC barrel to produce these ten different color BIC pens. I have used para cord for years to make lanyards for knives but never for the inside of BIC pens. If you would like a set of these pens you can contact the maker at firstname.lastname@example.org. Add them to your collection.