Bold, monthly and packed in a slim case, the Hobonichi x TSUKI no IRO Uniball One 0.38 July–December Set is six Uni-ball One pens in colours chosen to sit with the twelve soft print colours of the Hobonichi Techo. TSUKI no IRO puts those colours onto simple stationery.
This half-year set is July to December, in a blue case inspired by July. Each barrel is printed with the TSUKI no IRO logo and HOBONICHI TECHO in that month’s colour.
- July — Nemophila Blue
- August — Blue Black
- September — Cappuccino Brown
- October — Violet
- November — Emerald
- December — Red
Use them on the matching monthly pages, or as seasonal accents on calendars and Weeks spreads that are not printed in those colours. A pocket on the back of the case holds extra pens, sticky notes or small stickers. A January–June set (brown case) is sold separately.
- Package Size: 19.6 x 12 x 0.8 cm
- Set of 6 colours
- Nib Size: 0.38 mm
- Stainless steel, ABS & PP material
- Made in Japan






【ABOUT THE BRAND】
Founded in Tokyo, Japan in 1979 by copywriter Shigesato Itoi, Hobonichi is a globally revered lifestyle brand built around the philosophy of "Gentle, Strong, and Fun."
Hobonichi is world-famous for the Hobonichi Techo—a daily planner designed as a customizable "BOOK of LIFE." Crafted to lie 180° flat, these planners use ultra-thin, fountain-pen-friendly Tomoe River Paper, celebrated for its bleed-resistance. Each year, Hobonichi releases an eager-awaited collection featuring exclusive artist collaborations.
As an official Hobonichi Partner Shop, 85 Rue Tranquille brings these iconic Japanese planners and covers directly to your workspace.
