Business Source 28450 4" D-Ring View Binder Black

4" D-Ring View Binder for High-Volume Filing

This Business Source binder uses slant D-rings to hold up to 835 sheets, offering 25% more capacity than traditional round-ring models. The clear overlay on the front, spine and back allows quick customisation for easy identification. Two triggers on the ring mechanism provide smooth opening and closing. Inside pockets add extra storage for loose documents.

Check Sheet Size and Ring Compatibility

Verify that your documents match the 11 x 8-1/2 inch format before ordering. The three-ring mechanism requires standard punched holes spaced for US letter paper. Ensure the 4 inch spine width fits your available shelf or drawer space. The polypropylene cover is PVC-free and transfer-safe for long-term document protection.

Upgrade from Standard Round-Ring Binders

This model replaces binders that struggle with bulky files or fail to keep pages flat. The back-mounted slant D-rings let pages lie flat and increase capacity by 25%, making the jump worthwhile for archives, large projects or frequent reference use. Each inside pocket holds 30 sheets for supplementary material. The exposed rivets and chipboard core add durability for heavy daily handling.