Unused set of Pentel oil-based ballpoint pen refills BKL5 (0.5mm, extra fine). All unopened and unused. 0.5mm extra fine type. Ink colors: - Blue: 3 refills - Red: 4 refills (Total: 7 refills) Fine-tip type, easy to use for planners, studying, work, and office tasks. Recommended for those who want to stock up or buy in bulk. *Please understand that these are items stored at home. *Not sold individually. Feel free to ask any questions! Thank you!