Mailing bags MAILmedia C4 with window, 500 pcs, white

MAILmedia C4 mailing bags with window (pack of 500) are white, lightweight protective envelopes designed for sending C4-size documents and flat items. Each bag includes a clear address window to show recipient details without applying separate labels, and a self-sealing flap to speed up packing. The material provides basic protection from dust and light handling during postal transport and is intended for bulk or office mailing of invoices, brochures, contracts and similar flat correspondence.

Advantages

The clear window eliminates the need for separate address labels, reducing preparation time and material waste. The self-seal closure provides a quick and reliable way to secure contents without additional tape or glue. The C4 format fits unfolded A4 documents, ensuring documents remain flat and protected. Supplied in a large 500-piece pack, these mailing bags support high-volume mailing runs and frequent office use.

Suitable for

• Mailing invoices, statements and billing documents
• Sending brochures, flyers and promotional leaflets
• Dispatching contracts, reports and legal paperwork
• Bulk mailings from offices, warehouses or mail rooms

Key specifications

• Format: C4 (suitable for unfolded A4 documents)
• Color: white exterior
• Window: transparent address window integrated into the front
• Closure: self-sealing flap for quick sealing
• Quantity: 500 pieces per pack
• Material: lightweight protective film designed for postal handling

How to use

Insert the document or flat item into the bag so the recipient address is visible through the transparent window. Remove the protective strip from the self-sealing flap and press the flap firmly down to secure the envelope. For best results, avoid overfilling the bag and ensure the document lies flat inside to prevent wrinkling or obstruction of the address window. Use appropriate postage and handling instructions according to your carrier.

Recommendations

Store packs in a dry, cool place to prevent deformation of bags; handle gently during bulk packing to maintain window clarity. For important or sensitive content, consider using additional protective inserts or stronger mailing solutions if enhanced tear or moisture resistance is required.