Ensure your important documents are protected with the 20-Pack C4 Manilla Heavy Duty Envelopes. Designed for durability and security, these envelopes are perfect for mailing, storing, and organizing large documents, reports, and presentations. Made from high-quality, heavy-duty manilla paper, they offer robust protection against tearing and bending. The C4 size comfortably accommodates A4 documents without folding, making them ideal for professional and personal use. With a reliable adhesive seal and a classic manilla finish, these envelopes combine functionality with a polished look. Keep your documents safe and secure with these essential heavy-duty envelopes.