Ideal for use with top-loading sheet protectors and extra-wide index dividers ,One-Touch EZD locking rings that open with ease and keep pages secure, Gap-Free rings allow pages to turn easily; higher page capacity ,compared to same size slant and round rings Capacity: 1-1/2"; Sheet size: 8-1/2" x 11" ,Post-consumer materials: 40% minimum. Extra-wide cover for use with top-loading sheet protectors and extra-wide dividers. Crystal clear overlay enhances custom inserts on front cover, back cover and spine. Nonstick, archival-safe material won't lift ink or toner off of printed pages. One Touch mechanism lets you open, close and lock your binder in one easy step. Easy Insert feature helps you place and remove personalized spine inserts quickly and easily. Gap Free feature prevents ring misalignment so pages turn smoothly. Locking EZD(R) Ring holds up to 50% more than same size round rings (20% more than slant rings). Back-mounted rings allow pages to lie flat. Four inside pockets store unbound materials for improved organization. Pages lie flat with back-mounted rings.