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SSBM 100 Pcs #4 9.5 x 14.5 Kraft Bubble Mailers Padded Shipping Protection Envelopes Mailing Bags - Made In North America - Walmart.com
Amazon.com : 6x9 Inch White Poly Bubble Mailers Padded Envelopes, Self-Sealing Shipping Bags 50 Pack : Office Products
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How do I calculate how many stamps to use on a ReadyPost bubble mailer? I was told I could ship these across the country for under $5 each at the post office