Ship long or delicate items safely and professionally with our 340mm Postal Tube Box with Peel & Seal closure. Designed for convenience and protection, this sturdy cardboard tube box is ideal for posting documents, posters, artwork, small products, and other long items that require extra protection during transit.

Manufactured from strong corrugated cardboard, the tube box provides excellent rigidity to prevent bending or crushing while in the postal system. The square tube design offers practical advantages over traditional round tubes, allowing the box to stack easily, roll less during handling, and fit neatly into packing and storage areas.

The integrated peel & seal adhesive strip makes packing quick and efficient—simply remove the backing strip and press to seal securely. This eliminates the need for additional tape, helping speed up packing operations while maintaining a clean, professional finish.

With internal dimensions of 340mm x 110mm x 110mm, this postal tube is perfectly suited for eCommerce businesses, offices, print suppliers, and retailers who regularly ship long-format products.