This Uni Gel Pen Refill 7 mm Black 2-pack provides black ink, 7 mm point, 2-pack for reliable everyday writing and refill replacement. It helps extend the life of compatible pens or markers while reducing the need to replace the whole writing instrument. A dependable choice for office, school, reception, home office and commercial stationery supplies, Smooth Nanofiber ink with bold line. Also usable on glossy paper. Super Ink ™ Plus technology that protects against water, fading and fraud. Pack of 2. 0.7mm. Black.