The Pilot G-2 Gel Pen Refill 1.0mm Black (BLS-G2-10-B) is a genuine Pilot replacement refill designed for compatible Pilot G-2 gel pens. Featuring rich black gel ink and a broad 1.0mm tip, it delivers exceptionally smooth, skip-free writing with bold, consistent lines. Ideal for document writing, signatures, note-taking, journaling, and everyday office or school use, this refill extends the life of your Pilot G-2 pen while maintaining its renowned writing performance.