Extend the life of your Sailor ballpoint pen with the official 18-0103 refill. Its oil-based ink ensures smooth writing and is suitable for note-taking, correspondence, and daily professional use. The range offers three colors and three ball diameters, allowing you to choose an extra-fine, fine, or broader line.

Compact at 67 mm, this Japanese refill is designed for several compatible Sailor ballpoint pens and multifunction instruments, including the Profit 3, Profit 4, Yubi Maki-e, Metalino, Refino, and Marchant JP series. Always check the reference of the refill installed in your instrument before purchasing.