Envelope C4 Sigel DU330 transparent 25 pieces

Transparent C4 envelope made from special paper, designed to hold A4 documents (229 x 324 mm). The Sigel DU330 pack contains 25 peel-and-seal envelopes without a window, suitable for organizing and protecting important papers while maintaining a professional appearance.

Advantages

Transparent construction allows quick identification of contents without opening the envelope. The special paper offers a balance of durability and a neat finish. Peel-and-seal closure ensures fast and secure sealing without additional adhesive. Compatible with common office workflows and looks professional for business correspondence.

Suitable for

• Mailing and storing A4 documents
• Presentations, offers and business correspondence
• Archiving and filing without opening the envelope
• Office and home organisation of printed materials

Key specifications

• Format: C4 (229 x 324 mm)
• Material: transparent special paper
• Closure: peel-and-seal (no window)
• Quantity: 25 envelopes per pack
• Brand: sigel, MPN: DU330, EAN: 4004360829383

How to use

Insert A4 documents directly into the envelope so they lie flat within the C4 format. Remove the protective strip from the peel-and-seal flap and press firmly to close. For mailing, ensure address and postage are applied to the outer surface. Avoid overfilling to maintain a secure seal and preserve the envelope shape.

Recommendations

Store envelopes flat in a cool, dry place to prevent creasing. For best results when printing addresses or labels, test compatibility with your printer type; these envelopes are suitable for inkjet and laser printers as well as copiers, but always verify feed settings and print tests before processing large batches.