4 x 4 x 25" White Square Mailing Tubes

These 4 x 4 x 25 inch white square mailing tubes are built from ECT-32-B single-wall corrugated board and designed for long, slender items that demand a stable, non-rolling profile during handling and transit. The square cross-section keeps tubes stationary on packing lines and conveyor systems where round alternatives would shift or roll.

The no-tape, no-glue fold-together assembly reduces pack station labor and speeds throughput in e-commerce fulfillment, retail distribution, print shops, and architectural or engineering offices shipping rolled plans, posters, blueprints, and dowels. The white exterior finish supports clean, retail-ready presentation for direct-to-consumer shipments.

Each tube ships flat to conserve storage space and weighs approximately 0.43 lbs, keeping parcel weight calculations predictable for high-volume operations. Sold in bundles of 50 with consistent unit dimensions of 4" W x 4" H x 25" L interior.