Quality White Corrugated Triangle Mailing Tubes These white 200 lb. test corrugated boxes have a triangle-shaped design for easy inserting and removal.
- Triangular mailers ship flat and take up less space.
- Once assembled, these triangular mailing tubes will rest on flat surfaces without rolling off.
- Heavy duty, triangle shape offers extra side protection.
- Please note all sizes listed below are measured by the mailers' INSIDE usable dimensions (diameter x length).