USPS Regional Rate Boxes - Please Explain.

[greenfamilyfarms]

The USPS has new Regional Rate Boxes available and I'm debating if they will be worth my time and space in my shipping room to be worth while. Can somebody explain to me how these are used? I know they are similar to how flat rate boxes are used, but the website explanation leaves a person confused.

Edited to fix spelling.

 

[SundownWaterfowl]

I think what they are is just regular priority boxes, instead of having to use the flat rate boxes. I think they are the same size as the flat rate boxes, but you dont have to ship the flat rate, you can ship them by distance. Similar to when people turn the flat rate boxes inside out. Sometimes its cheaper to ship by distance/regional rate rather than flat rate.

Didn't know they had these. Gonna order some now.