Pentel LR10-B Refill for EnerGel RTX, EnerGel Deluxe, Metal Tip, Bold, Red Ink

Super-smooth, liquid ink refill is designed for EnerGel retractable pens. High-performance ink technology combines the best qualities of liquid and gel ink for a super-smooth writing experience. Quick-drying ink is ideal for lefties - no smears, no smudges and no globs. 1.0mm metal tip produces crisp, bold lines.