The Karst Pen is Swiss-made and crafted with calcium carbonate – the same core material as stone paper. The Karst Pen brings weight and balance to every stroke. Floating Ball®, black ink system delivers what Stone Paper demands: smoother flow, a bolder line, and ultra-fast drying, with up to 200% richer ink density, and exceptional performance on regular paper. Pair with Karst Stone Paper Notebooks.
