Maybe you want to try a different nib in your R615 fountain pen. Or sadly, something bad has happened to the nib unit that shipped with your pen. Or maybe you just like our nibs so much that you want one to use in your favourite pen. As it may be. 

Our nib units feature standard #6 size nibs, and precision engineered feeds that are tuned to be ‘wet’ - they can keep up with the ink flow demands of flex nibs. 

We designed them to be used in our flex fountain pens. But they are standard Jowo #6 compatible so should fit most pens that use this system (many leading brands as well as independent pen makers use this standard).

Take your pick from our selection of nibs

• Happy Medium - A wet, monoline medium, no flex. Perfect for that everyday writer or artist who likes a consistent line. Ships with a plastic feed.
• Fine Flex - A ‘fine’ nib that flexes happily to 1.4mm with a precision machined feed that keeps the ink flowing. It’s tipped, so works great for everyday writing, and is forgiving if you write on rougher or textured paper too. Ships with our polymer feed
• Titanium Flex - A soft, monster of a flex nib. Our wettest option, puts down a ton of ink. Ships with our polymer feed.