20 x A4 Envelopes, 324mm x 229mm Manilla Hard Board Backed Envelopes with Peel & Seal Strip, Do Not Bend Envelope

• Rigid Board Backing: Provides firm support to keep documents flat and protected throughout shipping and handling.
• Pre-Printed “Do Not Bend”: Made from durable manila paper with clear handling instructions to reduce the risk of bending or creasing.
• A4 / C4 Size – 324mm x 229mm: Suitable for unfolded A4 papers, certificates, brochures, or other flat items that require extra care.
• Peel & Seal Closure: Features a self-adhesive strip for quick, secure sealing without additional tape or glue.
• Pack of 20 – Recyclable Material: Made using recyclable materials for a more sustainable packaging option.

These envelopes are designed for securely mailing documents that need to remain flat. They are constructed with a rigid board backing to prevent bending and have "Do Not Bend" printed on the front to encourage careful handling. The C4 size (324 × 229 mm) accommodates standard A4 sheets without folding. Each envelope includes a peel-and-seal strip for convenient closure, and the materials used are recyclable. Suitable for general office, school, or personal use where protection and document integrity are required during posting.