Rite in the Rain All-Weather Pen Refill Black 37RRite in the Rain Pen Refill 37R Black Smooth All Weather Writing The Rite in the Rain All Weather Pen Refill 37R is now available at MJ Outdoors Gear UK, a must have for anyone who works or explores outdoors. Designed to perform in the harshest environments, this black ink refill ensures your notes stay sharp and legible, whether you're writing in a downpour, freezing cold, or scorching heat. Compatible with all Rite in the Rain all weather pens, this