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> 1000 9X12 9"X12" shipping mailers envelopes poly white
1000 9X12 9"X12" shipping mailers envelopes poly white
High Quality - 2.5 mil thickness - among the strongest available!
Lightweight - saves on postage versus paper mailers.
High strength seams allow for over-stuffing.
Superior tear and puncture resistance. The silver inner layer provides confidentiality. The white outer layer is great for adhesive labels, tape, sharpies, or printing!
Self-sealing: Pressure-sensitive adhesive provides a high strength durable closure, water and dirt resistant. No tape needed to seal!
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