The Pilot BLS-G1-7 Blue Refill 0.7mm is a genuine Pilot gel pen refill designed for compatible Pilot G1 gel pens. Featuring vibrant blue gel ink and a 0.7mm medium tip, it delivers exceptionally smooth, consistent writing with clean, bold lines. Perfect for everyday writing, note-taking, journaling, document preparation, and office or school use, this genuine Pilot refill restores your pen's original writing performance while extending its lifespan.