RetailSource E120901WT10 Flat Tyvek Envelopes, 12" x 9" x 1", White (Pack of 10)
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<b>[Product Information]</b><br>
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<li>Constructed from 14 lb. Olefin</li>
<li>Ten times stronger than paper envelopes</li>
<li>Feature self-seal closure</li>
<li>Available in plain, first Class and air mail Printed borders</li>
<li>Made in USA</li>
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