isshoni. System Planner Binder Cover with Pen Case / DAIGO

• Bible Size (6-ring) Dimensions: 205 × 130 × 30 mm
• Micro 5 Size (5-ring) Dimensions: 140 × 90 × 25 mm
• Cover Material: Polyester
• Lining Material: Polyurethane
• Closure: Magnetic snap
• Bible Size Pen Case: L-shaped opening pen case
• Micro 5 Size Pen Case: Gusseted zipper case
• Pockets: Business card pocket, front pocket (documents and sticky notes), inner pocket
• Refill Compatibility: Standard system refills (6-ring or 5-ring)
• Colors: Black, Gray, Blue, Pink, Ivory

The isshoni. name comes from the Japanese word for "together" (一緒に), and that idea drives the design: instead of carrying a planner and a pen case as separate items, both are unified into a single cover.

The Bible size addresses a common frustration with pen storage in binder planners by using an L-shaped opening case that keeps pens accessible without requiring you to fully unzip a compartment. The Micro 5 version, designed for the smallest common ring-binder format, opts for a gusseted zipper case that adds depth without adding bulk to an already compact format.

Both sizes include a magnetic snap closure rather than a zipper or elastic band, which allows for one-handed opening and a cleaner exterior profile. The front pocket is sized to fit A4 documents folded in thirds alongside sticky notes, and a secondary inner pocket adds a second layer of flat storage without requiring additional accessories.