Alert: The "new" traingular shipping tube frunished by USPS is extremely weak and flimsy. This is the one where you fold it one way for priority and the other for express mail. The cardboard is considerably weaker than on the previous sturdy tube. I received 3 shipments in the last week in the "new" USPS tube, and each package was mangled and crushed. Each time I wondered if the contents were damaged but luckily they were not. Even with an interior box for protection, these new boxes are a huge disappointment and will surely result in 2-3x more damage claims. Not a way for USPS to save money. What a disgrace, they had to have know this ahead of time.
Martin
Martin