These 5 x 5 x 12 inch white square mailing tubes are constructed from ECT-32-B white corrugated board, delivering a rigid, protective enclosure for elongated items that need tube-style packaging. The square profile eliminates rolling during packing and transit, improving stability on conveyor systems and flat warehouse surfaces where round tubes shift unpredictably.

The no-tape, no-glue assembly makes these tubes well suited for e-commerce fulfillment centers, retail replenishment operations, and direct-to-consumer shipments of posters, documents, rolled textiles, and similarly shaped goods. The clean white exterior accepts labels and printed branding without additional preparation.

Each tube ships flat, reducing storage footprint at the packing station until needed. At approximately 0.31 lbs per unit and parcel-friendly, they integrate smoothly into standard outbound shipping workflows. Bundles contain 25 tubes.