Photo 1 of BOX USA Shipping StayFlat Mailer 9"L x 11.5"W, 100-Pack | Flat Cardboard Mailing Envelope for Packing, and Document Storage 9 x 11 1/2

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Photo 1 of BOX USA Shipping StayFlat Mailer 9"L x 11.5"W, 100-Pack | Flat Cardboard Mailing Envelope for Packing, and Document Storage 9 x 11 1/2Photo 2 of BOX USA Shipping StayFlat Mailer 9"L x 11.5"W, 100-Pack | Flat Cardboard Mailing Envelope for Packing, and Document Storage 9 x 11 1/2