The Hobonichi Techo uses 12 soft colours across the book, and the TSUKI no IRO stationery series takes those colours into simple designs.

The Frost Fountain Pen (Extra Fine) is a special collaboration made with Kakimori, a stationery shop that crafts fountain pens, inks, notebooks and more, all created for people who write with joy.

Frost is an original Kakimori pen featuring a translucent body with the texture of frosted glass. It is thoughtfully designed so that even the faintly visible ink and nib become part of the pens overall design.

The pen features an easy-to-open screw-on cap and a grip section made as long as possible to keep your fingers off the ridges while writing. Every detail has been refined to eliminate unnecessary elements, while still conveying a sense of both modernity and charm.

For this collaboration we have kept all the beauty and ease of writing that Frost is known for, while giving the body a khaki grey colour exclusive to the Hobonichi Techo, with the TSUKI no IRO logo added in silver. The translucent material means you can enjoy watching how the pen changes in appearance once it is filled with ink.

This is the fountain pen version, which offers a smooth, flowing writing experience and comes with an EF (extra-fine) nib width, perfect for writing small, detailed entries in your techo. The rollerball version is sold separately.

Frost uses a converter system, meaning you draw in the ink yourself and ink is not included. We recommend pairing it with the TSUKI no IRO pigment ink or the mini ink bottle sets.

Precision in the Details

• An extra-fine nib for small boxes: The EF stainless steel nib lays down a hairline, so a full day of notes fits inside a techo grid square and never spills over into tomorrow.
• Frosted glass in the hand: The body is finely etched to feel like frosted glass cool, faintly powdery, never slippery and the unusually long grip keeps your fingers well clear of the cap threads.
• Watch the ink move in: You fill the converter yourself, and because the barrel is translucent you can always see how much is left; the muted khaki grey shifts in tone as the ink settles behind it.

Details

• Brand: Hobonichi
• Collection: Kakimori x TSUKI no IRO
• Type: Fountain Pen (extra-fine nib)
• Size: Length 134 mm x diameter 14 mm
• Weight: Approx. 14 g
• Material: Pen body: Polycarbonate / Pen nib: Stainless steel / Converter: Plastic
• Includes: Converter; ink sold separately