Quality Park TYE10131WE Tyvek Olefin Expandable Envelope, 13" Length x 10" Width x 1-1/2" Height, White (Case of 100)
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Feature
Tyvek envelopes provide superior puncture, tear and moisture protectionConstructed from 18 lbs olefin
Ten times stronger than paper envelopes
Envelopes expand to hold bulky items
Feature self-seal closure