AgION´┐Ż antimicrobial additive prevents the growth of bacteria, mold and fungus on the binder's surface and are EPA-Registered and FDA Approved. Clear overlay on covers and spine inspires you to create customized presentations. Documents stay secure with locking round rings. Having the rings mounted on the back lid allows pages to lie flat and adds a sleek, clean appearance with a rivetless spine. Two inside pockets provide extra storage for loose documents. Maximum Capacity Range ("): 1 1/2 in; Sheet Capacity: 300; Color(s): Black; Binder Sheet Size: 11 x 8 1/2.