This Zebra Ballpoint Pen Refill 7 mm Blue provides blue ink, 7 mm point for reliable everyday writing and refill replacement. It is suited for Zebra Ballpoint and helps extend the life of compatible pens or markers. A dependable choice for office, school, reception, home office and commercial stationery supplies, For Zebra Ballpoint Pen F701, F301, F301 Ultra, F402, F605 and Notus 500.