The Uni-ball Black Signo Gel Impact Pens give you a broad writing line and sturdy rubber comfort grip, providing you with a solid writing penperfect for use at home, at work or at school. It contains Uni-ball Super Ink, which is fade-resistant, water-resistant and tamper-proof. This refill set enables you to double the lifespan of this pen with two fully working pens and two additional strong, broad 1mm ball pen refills. The rollerball pen gives you smooth and consistent ink flow thats perfect for writing, note-taking, bullet journaling and more! Nib size: 1mmTwo packColour: BlackBroad rollerball penConsistent ink flowFade-resistant, water-resistant and tamper-proofPerfect for writing, note-taking, bullet journaling and moreUni-ball Black Signo Gel Impact Pens 2 Pack