Locking Slant-D® shape rings with hold 25% more sheets than standard round rings. Resists cracking along the cover seam for long lasting durability. Clear overlay on front cover, back cover and spine allows insertion of custom title sheets for a professional-looking presentation. PVC-free and non-stick cover variations will not lift print or damage contents. GelTab™ triggers. Capacity Range [Max]: 3″; Sheet Capacity: 725; Color(s): Black; Binder Sheet Size: 11 x 8 1/2.