4 x 72 Brown Mailing Tubes With End Caps .125 Gauge 12/Case

These durable 3 - ply spiral wound mailing tubes are perfect for safeguarding sketches, blueprints, graphs, posters, and important documents. The plastic end caps have a friction - fit design, staying firmly in place during mailing, and their flat surfaces are great for writing. Rigid and reusable, these tubes resist folding and bending. Note that the sizes listed are the usable dimensions after inserting the end caps.

How to use: First, open the plastic end caps. Then, gently insert your sketches, blueprints, posters, or important documents into the tube. Make sure everything fits well and is not too tight. Finally, put the end caps back on firmly. They have a friction - fit design, so just press them on. Note: These tubes are sized for the space inside after the end caps are inserted. Don't try to force very thick or large items that won't fit. Maintenance: When you're done using the tubes, you can reuse them. Just keep them in a dry place to prevent any damage. If the end caps get loose over time, you can still use them as long as they can hold on during mailing.