Which size is right for me?
Size 1-XS: 3" x 5.5"
Holds 10-15 letters or 2 rolled magazines
Size 2-S: 5" x 5.5"
Holds 10-15 letters or 5 rolled magazines
Size 3-M: 5.5" x 11"
Allows large envelopes and magazines to be stacked flat
Size 4-L: 11" x 11"
Holds 2 shoeboxes and still has room for 10-15 letters
Size 5-XL: 12" x 22.5"
Big enough for multiple Flat Rate Boxes and parcels
The depth of most PO Boxes is 14.75".
All sizes not available in all locations.