Trustworthy, 6" x 9" manila envelope will withstand heavy wear and tear to safeguard all your documents. 28 lb. paper offers sturdiness and privacy. When it comes to securely enveloping your important contents, we’ve got you covered. Secure, convenient and ready to go, simply fold down pre-treated flap with clasp closure and press for a quick seal. An absolute essential for your home, school or business, each box contains 100 envelopes. Made in the USA. The Sustainable Forest Initiative program promotes responsible forest management.