The Priority Mail Regional Rate Box - A2 is a quick, easy, and convenient way for you to ship Priority Mail packages. It is a side-loading box for up to 15 pounds. (Handling fee applied at time of purchase)
Inside Dimensions: 10-15/16" x 2-3/8 x 12-13/16"
Outside Dimensions: 11-1/16" x 2-1/2" x 2-1/2" x 13-1/16"