If you're looking for tip-top protection for your documents, look no further than these Secure Top™ Sheet Protectors. Each sheet protector features a convenient top flap that secures the contents, so you can store papers in nonstandard sizes with confidence and rest easy knowing your important document won't accidentally slip out of its protective sleeve. Diamond-clear material delivers a crisp view of your pages. Super heavyweight polypropylene is designed to withstand frequent use in your binder and is acid-free and archival-safe to provide long-term protection. Protects 8 1/2" x 11" insert sheets and smaller items. For clarity, security and strength, it's hard to top these sturdy sheet protectors.