Dual Side Click Zirconium Pen nofeed 3x its own weight in

3x its own weight in water

It also works great as a pen roll

the Roo Single holds up to 227 kg

Uses four common LR521/379A alkaline watch batteries (included)

Dual Side Click Zirconium Pen nofeed 3x its own weight inThe Dual Side Click Pen lets you have full control over your writing experience. The patent pending and fidgety click mechanism has release buttons on both sides of the pen. The pen auto adjusts both in length and tip size to create a fully custom pen that ticks all the boxes on your list. Zirconium construction Patent pending dual side click mechanism Accepts 100+ refills w o any hacks or modifications Auto adjusting collet to minimize tip wiggle