This BPS Ballpoint Pen Refill Medium Black 2-pack provides black ink, medium 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, Refill for BPS, BPSGP, BG-BPEGP ballpoint pen. Package of 2.