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The BSC PREFERRED M5518K is a square corrugated mailing tube designed to simplify packing and shipping operations. Unlike traditional round mailing tubes, the square profile prevents rolling on flat surfaces, reducing handling time and improving stability during transit. Each tube is constructed from 200/ECT-32-B kraft corrugated material, offering reliable crush resistance for standard mailing and shipping applications. The one-piece design ships flat, conserving storage space in warehouses and mailrooms. Assembly requires no tape or glue - tubes fold together quickly, supporting high-volume fulfillment workflows. Sold in packs of 25.
These square mailing tubes are suited for shipping rolled documents, prints, posters, blueprints, and other elongated items that require tube-style packaging. The flat-pack format makes them practical for mailrooms, distribution centers, and shipping departments that need efficient storage of packaging supplies alongside a fast assembly process. The kraft corrugated construction is a standard choice for businesses managing regular outbound shipments.
Designed as a general-purpose square mailing tube for standard document and poster shipping applications requiring tube-style corrugated packaging.
Assembly requires no tools, tape, or adhesive - fold the tube into shape following the pre-scored crease lines. Store flat until needed to maximize shelf and bin space. Ensure contents are secured inside before sealing the tube ends for shipment.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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