They say “the hype is real”, but more often than not, the hype is entirely fabricated. The more a product is hyped on Reddit and other places, the greater the chance it’s a marketing psyop. Unless that product happens to be the Uniball Zento Signature rollerball, in which case the hype is absolutely real.
The original Zento is a basic retractable plastic pen that you’ll find at your local stationery store for around €2. It’s so generic that if you’re not careful, you might pick a One F instead. Its only distinguishing feature is its refill — Uniball describes it as a “next-generation water-based” formulation, but thanks to the use of non-ionic surfactants, it’s almost as smooth as gel ink.
The Zento Signature uses the exact same refill, so why the hype? Well, because it looks nothing like a basic retractable plastic pen. Its metal construction gives it a premium look and pleasant heft. The grip section is coated in soft-touch plastic, a material that extends to the part of the barrel that’s in contact with the web of your thumb1. This makes it a delight to hold.
The barrel taper is the defining feature of the Zento Signature. It gives it its signature look, but also allows the cap to sit so deep it barely changes the length and balance of the pen. Which means that, yes, the Zento Signature isn’t even a retractable pen. The magnets in the cap and ends ensure a satisfying click each time you cap or post the pen. It’s just plain fun, to the point that i might have used it more as a fidget toy than as a pen.
Finally, the clip is made of a flat blade instead of a round wire, but it has the perfect amount of springiness. In the end, apart from the refill, the Zento Signature has nothing in common with the basic Zento. The 0.38 mm tip wouldn’t have been my first choice, but it was my only choice2.
In keeping with the tight tolerances of the whole pen, the tip wobble is minimal. Uniball could replace its oil-based formulations with the Zento water-based ink and it wouldn’t make that much of a difference. The good old Signo ink is a touch smoother, but it’s close, and the colour is nearly identical. I prefer the One refills, however, as they’re designed to be heavily pigmented. That’s where Uniball really hit the nail on the head: both the Signo and One refills fit in the Zento Signature.
In Japan, the Zento Signature costs twelve times more than the basic Zento, but that makes it only €18. As it’s not readily available elsewhere, resellers jacked the prices up to €40-60 for the basic colours and to more than €100 for the limited finishes. At that inflated price, it’s just not worth it. Let’s hope the hype will die down eventually. Even at €25, it’ll be a killer pen.
About the Z1NZ0L1N dispatch system
Z1NZ0L1N is a dispatch system operated by Anthony Nelzin-Santos, transmitting from the field since January 2025. This document describes the operator, the protocol’s naming convention, its transmission history, its field office, and how it’s funded.
Operator
Anthony Nelzin-Santos is a writer at heart, teacher by instinct, flâneur by habit. He’s known to wander in search of old shopfronts, to spend an inordinate amount of time curating his music library, to craft pocket notebooks with vintage roadmaps, to keep a collection of half-repaired typewriters and half-empty fountain pens, to wear jeans and hiking shoes all year round, to watch his plants grow, to roam around with the heaviest long-tail bike on the planet, and to acquire more books than can be read. He’s married to the only person willing to put up with all of it.
Naming convention
“Zinzolin” is a shade of purple between lavender-field blue and crushed-blackberry red. The medieval Italians traced it to jujube fruits (giuggiolino). The Mozarabs, were they still around to argue the point, would insist on sesame seeds (djoudjolân) instead. The operator chose it because it’s his favourite colour — partly because it sounds like his name.
Transmission history
The operator was born before the world wide web was invented, but grew up surrounded by computers. He launched his first website in 2000, started his first blog in 2004, recorded his first podcast in 2005, and uploaded his first video in 2006. He went pro in 2008. In 2025, after years spent transmitting in French, the frequency switched to English.
Field office
Z1NZ0L1N is hosted by Infomaniak near Geneva (CH). The operator is based in Lyon (FR) but has also sent dispatches from Aachen (DE), Antwerpen (BE), Besançon (FR), Bruxelles (BE), Liège (BE), Marseille (FR), Moulins-sur-Allier (FR), Paray-le-Monial (FR), Paris (FR), Schaerbeek (BE), Seyssins (FR), Utrecht (NL), and Vienne (FR). He’s made it a goal to visit and write in every country in the European Union (8 down, 19 to go!).
Funding
Z1NZ0L1N is proudly ad-free. The operator covers hosting and the domain name — roughly €120 a year — out of pocket. The best way to support his efforts is to subscribe to the RSS feed and share your favourite dispatches with your friends. That being said, if you ever feel like sending one, a cup of coffee is always welcome.
Colophon
Tools
Notebooks: handmade. Ink: purple, one of many. Pen: a fountain pen, often a Lamy Safari, also one of many. Backup: a Leuchtturm1917 Drehgriffel Nr. 1 ballpoint, a Uniball Zento Signature rollerball, or a Caran d’Ache 849 mechanical pencil. Notes when the notebook’s out of reach: Bloom. Computer: MacBook Air. Mechanical keyboard: more than one. Writing: Lettera, formerly Ulysses. Coding: BBEdit. Proofing: Antidote. Publication: Hugo.
Blogroll
Inspirations: Aegir, V.H. Belvadi, Ian Betteridge, Mandy Brown, But she’s a girl…, Frank Chimero, Simon Collison, Zinzy Waleson Geene, Josh Ginter, Chris Glass, Piper Haywood, Nick Heer, Jon Hicks, Alan Jacobs, Keenan, Winnie Lim, Tom MacWright, Louie Mantia, Craig Mod, Manuel Moreale, Riccardo Mori, Anders Norén, The Pen Addict, Kev Quirk, Robin Rendle, Melanie Richards, and Mateusz Urbanowicz. Suggestions: please.
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