D-ring binder features a heavy-duty construction to withstand the rigors of daily use. Strong, durable polypropylene material resists cracking and tearing. No-gap, D-rings eliminate misalignment and hold 25 percent more sheets than conventional round rings of the same size. Pocket guard provides a convenient location to hold loose documents. Anti-glare overlay on the outside fronts, backs and spines completely displays customized title pages. ENVI Heavy-duty Customizer D-ring Binder also offers a Tough Hinge that adds increased strength, 1" capacity and a textured-like grained, professional-looking finish.