The Castello C3 Brown Envelope (458 x 324mm) is a reliable and practical solution for mailing and storing larger documents safely and professionally. Designed to accommodate A3-sized papers without the need for folding, it ensures your documents remain neat, flat, and presentable.
Constructed from strong, high-quality brown kraft paper, this envelope offers excellent durability and protection against tearing, bending, and everyday handling during transit. It is ideal for sending important documents such as contracts, certificates, reports, drawings, and presentations.
The self-seal (S/S) closure provides added convenience, allowing for quick and secure sealing without the need for additional adhesives. This makes it efficient for high-volume office use while ensuring contents remain protected.
Perfect for offices, schools, businesses, and administrative use, the Castello C3 Envelope combines strength, functionality, and ease of use—making it an essential item for professional document handling and mailing.
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