Enhance your writing experience with our 0.7mm black office press-type ballpoint pen refills. These gel pen refills offer a fine tip for precise and clear writing, making them suitable for detailed work and everyday use. Simply replace the old refill in your press-type ballpoint pen with these excellent ink refills, and enjoy a smooth and uninterrupted writing flow. ideal for office stationery and writing supplies. Features -Color:Black -Material:Refill -Size:10.00X0.20X0.20cm/3.93X0.08X0.08in -Clear black ink: the black ink of the pen refill produces clear and legible text, ideal for both personal and professional writing tasks -Fine tip: the fine tip design ensures smooth and consistent ink flow, providing a seamless writing experience without any interruptions - use: these pen refills are built to last, offering longterm usage and reducing the need for frequent replacements, making them practical -Simple replacement: the refills are easy to install, allowing for quick replacement, ensuring your pen is always ready for use -Compatible with presstype pens: designed to fit presstype ballpoint pens, these refills are versatile and suitable for a wide range of pen models Package list: 800 x ballpoint pen refills