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 Alvin Mailing Tube 25In X 3.5In Sq A unique 3 1/2" square design for easy insertion and removal of rolled documents, simple stacking for storage, reduced weight for postal cost savings. Ideal for maps, charts, blueprints, drawings, tracings, negatives, etc. Crush-resistant 250 lb. test corrugated fiberboard with hard draft finish. Self-lock closure can’t pop open, needs no tape or glue. Packaged and sold 36/carton, shipped flat and boxed. |  |
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