Heavy-duty view binder features improved One Touch EZD locking rings that open with ease and keep pages secure. Gap Free ring feature prevents gapping and misalignment of rings. Organize and secure paper with four stacked pockets. Nonstick, archival-safe material won't lift ink or toner off printed pages. Wide front and back binder panels fully cover standard dividers and sheet protectors. Quickly load spine ID with Easy Insert spines (1" only). Pages lie flat with back-mounted rings. Rings hold up to 50 percent more than same-size round rings. Overlay material is made of crystal-clear poly. Binder is made of heavy-duty poly.