Upgrade your writing experience with these premium ballpoint pen refills. Each set includes 5 black ink refills featuring a 1mm medium tip point that delivers smooth, consistent lines perfect for everyday writing tasks. The metal construction ensures durability and reliable performance, while the 4.6-inch length makes them compatible with many standard pen bodies. These refills are ideal for office use, note-taking, or any situation requiring dependable writing performance. The medium point strikes an excellent balance between precision and flow, allowing for comfortable extended writing sessions. Keep your favorite pens working like new with these high-quality replacement refills that provide crisp, dark lines and professional results every time.