Pentel EnerGel Deluxe Retractable Pen Refill, Bold Point, 1.0 mm, Black

When your ink runs out, instead of searching for a new pen, simply grab this deluxe retractable pen refill. Pentel EnerGel refills work with your EnerGel series pen to add fresh ink, and the bold points help you make noticeable lines. Bold point provides heavy, distinct lines. Liquid gel offers easy-to-read markings. Designed for your EnerGel series pen (sold separately). Gel pen refills in black provide smooth lines to help you manage important notes when your pen runs dry.