More capacity. More strength. More features. Cardinal SuperStrength Slant-D Locking Ring Binders feature both the extra-tight grip of Cardinal's locking Slant-D Ring and heavier, more durable material to make this a true performance binder. The slanted ring profile helps pages to turn easier, holds 25 to 50% more than standard round rings, and provides an extra-firm locking mechanism to prevent spills and eliminate all gaps. The DataGuard pocket inside the front provides protection against ring pressure marks and creasing, and the patented Expand-A-Pocket inside the back expands to hold up to an additional half inch of material. This heavy-duty reference style binder contains minimum 45% recycled content (by weight). TOPS Products offers a huge variety of office products and organization solutions that help make life run a little more smoothly. From binders to note taking to legal forms and filing, we've got you covered.