4 x 36 Brown Mailing Tubes With End Caps .125 Gauge 12/Case

• These 3-ply spiral wound mailing tubes are super durable, perfect for safeguarding sketches, blueprints, graphs, posters, and important documents.
• The plastic end caps have a friction fit, staying on securely during mailing. Their flat surface is great for writing notes.
• Rigid and resistant to folding or bending, these tubes can be reused. The listed sizes are the usable dimensions after inserting the end caps.

Using these mailing tubes is easy. First, place your sketches, blueprints, or other documents inside the tube. Then, firmly press the plastic end caps onto both ends of the tube. When writing on the end caps, use a regular pen or marker. As for storage, keep them in a dry place to prevent any damage. You can reuse these tubes multiple times. Just make sure to clean them out if there's any debris inside. Avoid exposing them to extreme heat or pressure, as this could cause the tube to bend or the end caps to break.