Where do i find the option for Priority Mail Mailing Box?

[jrerey.5330]

So i have this shipping box that i want to use to send the item sold today. The thing is the only box i have is Priority Mail Mailing Box. The id is ID: 11.5 x 2.375 x 13.125. when i go to shipping label i dont see Mailing Box as an option. Which do i pick or do i get anothing box that is listed?

[lintbrush*]

That's a regular Priority branded box.  It goes by weight/distance.

You don't have to pick anything special other than regular ole Priority (Package/Thick Envelope) when purchasing your label.  

[jrerey.5330]

ok thank you for the info