Envelope - 13-1/2 x 9, Press-To-Seal - SKU 162545 is a dependable mailing envelope for everyday mailing, filing and document handling in homes, offices, schools, clinics, retail counters and busy mailrooms. It features polypropylene. Frosted. 2 inckets. Snap button closure. 13-1/2 x 9 in. Key details include 13-1/2 x 9 in. 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.