Description Our metal ballpoint pen refills are designed to provide a smooth and consistent writing experience for your twist pens and metal pens. Ideal for office use, these black ink refills ensure that your writing is always clear and specialized. Simply remove the old refill from your pen and replace it with our sturdy metal refill to continue enjoying a seamless writing experience. Features -Color:Black -Material:Metal -Size:11.60X0.53X0.53cm or 4.56X0.21X0.21in -Durable metal construction: the pen refills are made from sturdy metal, ensuring a lightweight yet durable writing experience that stands the test of time -Smooth writing experience: enjoy a seamless writing experience with quickdrying ink that prevents smudging, making it practical for specialized and personal use -Wide compatibility: these refills are compatible with a variety of ballpoint pens, making them a versatile choice for any pen collection -Ideal for multiple settings: suitable for office, business, school, and home use, these refills are practical for any writing task you encounter -Practical for sharing: whether for personal use or sharing with friends, these pen refills offer convenience and reliability for everyonePackage list: 50pcs x ballpoint pen refills