Invitation Envelope - 4 x 6, White, Press-To-Seal, Box of 250 is a dependable mailing envelope for everyday mailing, filing and document handling in homes, offices, schools, clinics, retail counters and busy mailrooms. It features open side. Deep flap to print return address. 24 lb. Box of 250. Certified FS. Key details include 4 x 6 in, white, 24 lb, box/pack of 250. The press-to-seal closure makes it simple to prepare letters, forms, invoices, statements and other documents while helping keep contents neat, protected and ready for delivery. Its practical size, pack quantity and ready-to-use design help customers choose the right supply quickly, stay organized and maintain a smooth mailing workflow for routine correspondence and administrative tasks.