MAILmedia mailing bags B4 size, pack of 250 pieces

MAILmedia mailing bags B4 size, pack of 250 pieces are durable protective envelopes designed to accommodate B4 documents and flat items for shipping and storage. The pack contains 250 identical mailing bags sized to hold invoices, catalogs, brochures and other flat promotional or business materials while providing a tear-resistant outer layer and a secure closure for reliable handling during transport.

Advantages

These MAILmedia B4 mailing bags combine volume and durability to support routine mailing needs. Their dimensions match B4-format sheets and similar flat items, reducing the need for folding. The material is resistant to tearing and moisture to help protect contents, and the uniform pack size simplifies inventory management and purchasing for offices and e-commerce operations.

Suitable for

• Business correspondence and invoicing
• Mailing catalogs, brochures and promotional materials
• E-commerce shipments of flat items such as prints or thin product samples
• Office archiving and secure document transfer

Key specifications

• Format: B4-compatible internal dimensions suitable for B4 sheets and similar flat items
• Quantity: 250 pieces per pack
• Material properties: tear-resistant and moisture-resistant envelope material
• Closure: secure adhesive/seal suitable for mailing (single-use)
• Colour and finish: standard protective finish designed for handling and labeling

How to use

Insert the B4 document or flat item into the mailing bag ensuring it lies flat and is centered to avoid edge stress. Remove the protective strip from the adhesive closure and press firmly along the seal to secure the contents. Apply address labels or print directly onto the bag where permitted, and affix postage according to carrier requirements. For heavier or bulky contents, consider additional internal support such as cardboard inserts to prevent bending during transit.

Usage recommendations

Store the pack in a dry, cool area away from direct sunlight to maintain the integrity of the adhesive and material. For confidential documents, pair the mailing bag with a tamper-evident seal or use an inner protective sleeve. When shipping overseas or through carriers with strict handling rules, verify dimensional and weight limits to ensure compliance.