12 x 16 x 4" White Expandable Tyvek® Envelopes (TYE12164WS) Case Of 5012 x 16 x 4" White Expandable Tyvek Envelopes. Tyvek envelopes provide superior puncture, tear and moisture protection. Constructed from 18 lb. olefin. Ten times stronger than paper envelopes. Envelopes expand to hold bulky items. Feature self seal closure. 50 per case.
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12 x 16 x 4" White Expandable Tyvek® Envelopes. Tyvek® envelopes provide superior puncture, tear and moisture protection. Constructed from 18 lb. olefin. Ten times stronger than paper envelopes. Envelopes expand to hold bulky items. Feature self-seal closure. 50 per case.
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12 x 16 x 4" White Expandable Tyvek® Envelopes (TYE12164WS) Case Of 50