Made from durable 28 lb kraft paper for better resistance to tearing and everyday wear than typical letter envelopes Size: 10×13 Closure features include a metal clasp, reinforced eyelet, and gummed seal for a secure seal during storage or mailing Pack includes 20 envelopes Sized for letter documents and useful for home offices, filing, and mailing needs Smooth blank exterior is suitable for writing, printing addresses, or applying shipping labels Compatible with most inkjet and laser printers Well suited for mailing or storing catalogs, magazines, photos, brochures, and other flat documents Brown/manila finish