For handwritten tasks, the replacement cartridge from Caran d'Ache makes completing your assignments more conscious of consumption. The reliable supporter keeps your ballpoint pen ready for use and is very easy to replace. Its composition allows it to work effectively, preventing unnecessary interruptions from constant swapping. It's best to always have a small stock of them on hand. A special writing paste makes the product particularly functional. A robust ball at the tip turns the pen into a proven all-rounder. This item features a blue color. Is your pen already used up? Ensure hassle-free replenishment with the replacement cartridge from Caran d'Ache. It can be changed quickly and easily.