Bubble Mailer - 10 x 13, White, Self-Seal, Box of 100 is a dependable shipping and document-protection mailer for everyday mailing, filing and document handling in homes, offices, schools, clinics, retail counters and busy mailrooms. It features polyethylene. Self-seal closure. 3 mil thickness.10 x 13 in. White, grey inte. Key details include 10 x 13 in, white, box/pack of 100. The self-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.