We use these poly mailers for shipping t shirts from our business. They are the perfect size, stay sealed, and help with postage cost. You can get a lot in these mailers.
Really am happy I decided to purchase the Self Seal 7.5x10.5-inch Premium Poly Mailer (Case of 100) . It was perfect for mailing the small booklets of recipes I printed for my family. I would certainly recommend this for mailing of small flat items.
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