Quality Park, #10 Window Envelopes, Redi-Strip, White, 500 per box (69222) PERFECT FIT: Our #10 envelopes effortlessly fit standard 8.5x11 sheets of paper and documents. REDUCE WASTE: Not only will the Redi-Strip save your time, it will save your money! These envelopes have a longer shelf life thanks to the peelable strip that protects your adhesive from dust! Features: 500, #10 Security Tinted Window Envelopes GREAT VALUE: Every box comes with 500 Redi-Strip envelopes that are so versatile they can be used for multiple purposes. SECURE: Redi-Strip self-adhesive closure will ensure your contents stay safe with the licking factor out of mind