usps priority mail medium flat rate box shipping time

Make sure your box does not have anything loose hanging from it like twine, string, or tape because it can get caught in the sorting equipment.The simplest way to understand the difference between USPS Priority Mail vs Priority Flat Rate is to think of USPS Priority Mail as the umbrella service for all Priority Mail.If your box has other stickers or logos other than the USPS logo for Priority Mail boxes, cross them out with a marker or cover them with your postage label.Use a box that will hold your shipment but still leaves a little bit of room for you to add any padding material.You don’t have to use the USPS Priority Mail box. For Retail Ground and First Class Mail, you can use any sturdy cardboard box.Do not use cord, string, twine, masking tape, duct tape, or cellophane tape to seal your box.Reinforce the flaps on the top and bottom with tape so that the box doesn’t open while in transit.

Seal the envelope or tape the box shut with clear or brown packaging tape so that it closes flat on all sides. Fit your item(s) into a box or envelope and add cushioning materials like bubble wrap, newspaper, or packing peanuts if necessary. Pack your shipment into a box or envelope and seal it shut.

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Usps priority mail medium flat rate box shipping time