Photo 1 of 10x13 Black Poly Envelope Mailers Medium 100Pcs,Business Packaging Supplies,Mailing Envelope Bags,Shipping Packages,Self-Seal,Tear & Waterproof for Books,Clothing,Gifts

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Photo 1 of 10x13 Black Poly Envelope Mailers Medium 100Pcs,Business Packaging Supplies,Mailing Envelope Bags,Shipping Packages,Self-Seal,Tear & Waterproof for Books,Clothing,GiftsPhoto 2 of 10x13 Black Poly Envelope Mailers Medium 100Pcs,Business Packaging Supplies,Mailing Envelope Bags,Shipping Packages,Self-Seal,Tear & Waterproof for Books,Clothing,Gifts