TWSBI Eco Fountain Pen - Plum w/Onyx Nib:Extra Fine It uses a spring-loaded twist

It uses a spring-loaded  twist mechanism

Outside of the top cover fits a flat lay A5 notebook

along with standbys like the top attractions

made with the skeletonization technique

TWSBI Eco Fountain Pen - Plum w/Onyx Nib:Extra Fine It uses a spring-loaded twistSimply unscrew the end cap, dip into ink, screw back the end cap, and you're done! Ready to write!! Pen cap has an inner cap to insure a perfect seal when stored away. Made for the beginner who just wants to try out fountain pens, all the way to the experts. A good everyday worker. Please note this pen requires bottled ink (sold separately) to write. Explore our Bottled Ink collection.