Ebonite, a durable material crafted from natural rubber and sulfur through a precise heating process, provides a uniquely comfortable writing experience, minimizing hand fatigue during long writing sessions. These pens are fashioned from distinctive marbled ebonite, each meticulously handcrafted to ensure no two are ever identical. This creates a traditional barrel-style fountain pen, unadorned by a clip, offering a timeless aesthetic.

The name HAKOBUNE, referencing a traditional Japanese rectangular boat, symbolizes a wish that these fountain pens bring joy and good fortune to all who use them. Each HAKOBUNE pen is meticulously crafted and polished entirely by hand, including shaping on a Rokuro, a traditional Japanese lathe, resulting in a truly refined writing instrument.