The Uniball Zento Signature, Flow, and Basic all in .38. The difference is in pen materials, with the Basic feeling like your typical light disposable, the Flow being slightly heavier and more tighter in construction, and the Signature featuring magnetic cap and post. Otherwise, the cartridges are the same.
The ink itself is glorious, and I highly recommend all pen carriers check it out. Pass on the Signature until youβve experienced the ink and you can actually find it at a decent ($30) price.
