The Castello C4 White Envelope (324 x 229mm) is a professional and practical solution for mailing and storing important documents. Specifically designed to fit A4-sized papers flat, this envelope ensures your documents remain neat, uncreased, and presentable during transit.
Crafted from strong, high-quality paper, the envelope provides reliable protection against bending, tearing, and everyday handling. The crisp white finish offers a clean and professional appearance, making it suitable for formal correspondence, contracts, reports, and business documentation.
Featuring a self-seal (S/S) closure, this envelope allows for quick and secure sealing without the need for moisture or additional adhesives. This makes it especially efficient for high-volume office use while ensuring contents remain safely enclosed.
Ideal for offices, schools, and administrative environments, the Castello C4 White Self-Seal Envelope combines convenience, durability, and a polished presentation—making it an essential for everyday document handling and mailing.
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