The Zebra F-Refills in Red Ink are specifically designed for the F-301 Series, F-402, F-701, A-301A, F-301 Compact. Made by the reputable brand Zebra, these ink refills come in a pack of 2 for a total of 16 refills. The red ink is perfect for writing and drawing, and the Indonesian-made products ensure quality and consistency. Ideal for businesses and office use, these ballpoint pen refills are a reliable choice for keeping your pens stocked with fresh ink.