Revolutionary One Touch™ mechanism lets you open, close and lock your binder in one easy step. Gap Free™ feature prevents ring misalignment so pages turn smoothly. Locking EZD™ ring has up to 50% more capacity than the same size round ring. Back-mounted rings allow pages to lie flat. Four inside pockets store unbound materials for improved organization. Wide front and back panels fully cover standard dividers and sheet protectors. Nonstick, heavy-duty poly won't lift ink or toner off print pages. PVC-free.