These durable aluminum pens are refillable and offer archival, acid-free, pigment based ink. Tips can be replaced with standard SP nibs. Waterproof. Compatible with Copic markers.
Never throw an SP away, just replace worn nibs and insert refill cartridges in SP pens quickly and easily. One end is for nibs, the other for refill cartridges. Ink may take a minute to flow after changing a nib.
This 4 piece set contains 4 Multiliner SP primary colors with a 0.3mm nib: Olive Green, Sky Blue, Yellow, Red; Comes in a hard, plastic case.