Business Source 28559 11" Round Ring Binder Black
- Vinyl
- Binder Rings
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A5 notebook with 80 sheets of 75 gsm Japanese paper featuring a combined grid, line and dot pattern that opens completely flat
The Itoya Medium ProFolio Oasis Notebook in A5 format measures 5.8 by 8.3 inches and features a durable charcoal cover. It contains 160 pages of 75 gsm Japanese paper with a combined grid, line, and dot pattern. The notebook opens completely flat at 180 degrees and folds back 360 degrees for flexible use.
This single notebook replaces separate pads for writing, sketching, and technical drawing thanks to its proprietary hybrid paper pattern. The jump is worth it for fountain pen users who need bleed-resistant 75 gsm paper that handles wet ink cleanly. Buyers who want more than 80 sheets per book will need a larger format or multiple volumes.
No assembly is required; the notebook is ready to use straight from the package. The sewn binding allows a full 180-degree flat opening and 360-degree fold-back without cracking. The only common issue is the light pattern visibility under very faint pencil, which some users find too subtle for precise alignment.
Measured against everything we stock in Ring Binders & Sheet Protectors, at today’s prices. Recalculated every night.
No published specifications for this item yet.
The notebook measures 5.8 by 8.3 inches, matching the standard A5 format.
The sewn binding opens to a full 180 degrees and folds back 360 degrees without damaging the spine.
The paper is bound into the cover and cannot be replaced; once the 160 pages are used, a new notebook is required.
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