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Staples® Self-Seal White Flat Mailers are strong to protect photos and documents during shipping.
Staples® 17" x 21" Self-Seal White Flat Mailers are made from strong chipboard and require no additional stiffeners to protect your documents. Sold 100 per Case.
These Staples StayFlat mailers measure 17 inches x 21 inches, so you can use them to mail a wide variety of photos and documents. Just peel off the protective strip and seal the envelope using the adhesive QuickStrip—it sticks firmly, so your documents stay safe in transit. The rigid chipboard envelopes won't crush or bend, making them an ideal option for photos.
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