Smooth. Precise. A high‑quality 0.5 mm Black gel refill designed as a perfect replacement for Slimline Pro Gel pens.

The Slimline Pro Gel Refill – Black (0.5 mm) is a reliable replacement refill that restores your Slimline Pro Gel pen to its original smooth, consistent writing performance. With a fine 0.5 mm tip, this refill delivers crisp, clean lines ideal for everyday writing, note‑taking, journaling, and professional use.

Designed for compatibility with the Slimline Pro Gel pen kits, this refill installs easily and provides long‑lasting ink flow with a rich, deep black colour. It’s the perfect choice when your pen needs a refresh or when you want to keep a spare ready for future use.