Send mail to clients, family and friends with a box of all-purpose envelopes from Office Depot Brand. Whether you're writing personalized letters or doling out invoices, white standard envelopes offer a crisp, clean look to help you maintain a professional appearance. All-purpose envelopes are ideal for personal and business correspondence. Fully gummed flap promotes a strong, dependable seal. Made with crisp 24-lb white wove. Box of 500 envelopes.