Ball Point Pen Refill

Ball point pen refills are ink cartridges that are designed to fit into ballpoint pens. They are used to replace the empty or dried-out ink in a ballpoint pen, allowing the pen to be used again without having to purchase a new pen. Ball point pen refills typically come in a variety of colors, such as black, blue, and red, to suit different writing needs. They are commonly used in offices, schools, and other professional settings where writing instruments are frequently used.