These white mailing tubes measure 2 1/2 inch inside diameter with 36 inches of usable interior length, constructed from 3-ply spiral wound paperboard at .07" wall thickness. That wall spec delivers rigid resistance to bending and crushing, keeping rolled contents protected through handling and transit.

Print shops, architectural and engineering firms, photographers, and fulfillment operations shipping rolled documents, technical drawings, blueprints, and large-format prints rely on this tube size for reliable cylindrical protection. The 36" usable length accommodates standard drawing and print sizes without trimming or folding.

White snap-on end caps are included and engineered to stay secure without popping loose in transit. Note that the listed 36" length reflects usable interior space — actual tube length is slightly longer to accommodate the end caps. Replacement 2 1/2" caps are available separately for operations that reuse tubes across multiple shipments. Each case contains 34 tubes.