Manufactured by Lion, these box files are available in three traditional Japanese colors, “Haijiro (Pale Gray)”, “Kuriiro (Dark Brown/Chestnut)”, and “Nibiiro (Dark Gray).” Each colour was mixed in during the paper milling process—making these colours unachievable through printing alone.

The design of the boxes stem from CDT’s design code; the boxes angles are based on the golden and silver ratio.

Best suited for A4 size paper widthwise.