The KOKUYO Brasspen represents refined engineering meets organic transformation. Handcrafted in Tokyo from solid brass throughout—axis, cap, screw, and tip—this 15g writing instrument delivers substantial presence and longevity.
Its dual functionality sets it apart: a premium ballpoint pen with smooth, black water-based gel ink, and a pencil extender when the tip assembly is removed, maximising the life of your favourite pencils. What truly distinguishes the Brasspen is its living finish. The natural brass develops a distinctive patina as it oxidises through daily use and contact with skin oils, gradually shifting from bright gold to deep, antique tones. This evolution means no two pens age identically, transforming your tool into a genuinely personal artefact. Ideal for those who value craftsmanship, intentional design, and objects that improve with time.
Refills available here
- φ0.9 x 12.9 cm
- 15g
- Brass material
- Black ink
- Refillable
- Made in Japan
About KOKUYO
KOKUYO began in 1905, when their founder opened a shop selling ledger covers.
Since then, their organization has expanded through the development of innovative products and services, and by keeping abreast of the changing times.
