Page-size sheet protectors protect your papers without obstructing your tab dividers. Unique design protects your three-hole punched pages without an extended binding edge that makes tabs hard to find. Heavyweight construction withstands the rigors of use in a three-ring binder. The acid-free, archival-safe material won't lift print from your papers for a view that stays diamond clear. Sheet protectors are designed for use with three-ring binders (sold separately).