Kokuyo Jibun Techo Biz 2026 – A5 Slim Diary Refill

When your current diary has seen one too many boardroom battles or café scribblings, the Kokuyo Jibun Techo Biz 2026 – A5 Slim Diary Refill steps in with quiet confidence. Designed for professionals who prefer subtlety over showiness, its muted colour scheme looks perfectly at home in any workplace. Inside, you’ll find Kokuyo’s trademark organisation system intact: vertical weekly schedules, monthly block calendars, and Gantt charts, all joined by thoughtful pages for goals, health, meals, and reflections. Printed on Kokuyo’s MIO PAPER™, the refill provides a smooth, fountain pen–friendly writing experience that never smudges, rarely shows through, and always feels reassuringly sturdy in hand.

What Makes It Work So Well

• Businesslike but never boring: The Biz series favours understated colours that keep your planner looking professional without sacrificing personality.

• Structure that supports you: Weekly, monthly, and project-tracking layouts keep both short-term tasks and long-term ambitions neatly aligned.

• Paper that performs: Kokuyo’s exclusive MIO PAPER™ offers quick-drying, smudge-resistant pages that make every fountain pen flourish look deliberate.

Specifications

• Size: A5 Slim
  
• Dimensions: 210 × 130 mm (8.2 × 5.1 in)
  
• Pages: 104 sheets
  
• Set Includes: Biz 2026 DIARY (cover not included) and Instruction Manual
  
• Material: Mio Paper
  
• Country of Origin: Japan