"The most compact pen resistant to ages."

We wanted to come up with a pen that would be tiny and fit comfortably in any pocket. But for it to work, it must be very durable and simple at the same time. So we came up with this "noisy cricket." It measures only 90 mm when closed, but 109 mm open and weighs a pleasant 20 g. It is made entirely of stainless steel and is strong as a ram's forehead. We didn't want to make it too complicated, so we provided Nikini with a decent quote of the clip to prevent rolling on the table.

Precise as a clockwork

The entire surface is machined by CNC technology, so it is perfectly smooth and very precise. We have placed the threads on the pen in a way that under no circumstances can they interfere with your grip of the pen.

Maximum simplicity

The whole construction of the pen consists of only three stainless steel parts and one tiny nut for fixing the nib. As subtle as Kayu Nikini is, it is incredibly resilient and strong in a hand.

Special design

In order to achieve maximum savings in dimensions and at the same time to make the pen that really lasts, we have omitted magnets from the design this time. Closing and opening of the pen is done by precisely milled threads of special dimensions.

Nothing to limit you

The grip diameter of the pen is exactly the same along the entire length of the Kayu Nikini: 9.5 mm. Because we wanted the cap posted when writing, it is perfectly aligned with the nib not to bother you in your hand. Therefore we came up with a new way to hold the tip in the pen.

Nib you can rely on

The nib is always the heart of the pen. That's why we use only high-quality tips from German manufacturers. There are two variants of nib thickness. Because of small dimensions, the pen is filled with cartridges.




Closed length90 mm

The pen measures exactly 90 mm, so it really fits into even the smallest pocket.

Open length
109 mm

We measure the open length including the nib, the space for grip is limited only by the length of the pen.

Grip diameter
9,5 mm

The diameter of the grip is the same everywhere in the Nikini.

±  20 g

The dry weight of the pen is only 20 g, including the cap attached to the other end.


For the Kayu Nikini pen, only cartridge filling is currently possible. We are preparing to fill with a microconverter in the future.


We use high-quality nibs from German manufacturers in basic thicknesses of F and M tracks made of gold-plated steel.


We are able to provide the pen with a monogram or text according to your requirements for an additional 380 CZK.


If you want a pen of a special shape, other length or perhaps provided with hand engraving, we will be happy to accommodate you. Unleash your imagination.