Heavy-duty view binder features a poly material that will not stick to cover inserts or materials stored inside. Material is archival-safe for all documents including photos and offers superior, cold-crack resistance to 5 degrees Fahrenheit. Nonglare clear overlay holds custom title sheets. Use free online templates to customize. Back-mounted, nonlocking, steel round rings with dual opening and closing triggers allow sheets to lie flat. 1-1/2" ring capacity accommodates approximately 350 sheets. Horizontal pockets on the inside front and back covers secure loose documents. Each pocket holds 40 sheets. Binder also offers exposed rivets and a sturdy chipboard core.