9 x 12" First Class Flat Tyvek Envelopes. Tyvek envelopes provide superior puncture, tear and moisture protection. Constructed from 14 lb. olefin. Ten times stronger than paper envelopes. Feature self-seal closure. Available in plain, First Class...

In stock
  • RevType
  • 2
  • Manufacturer
  • Tyvek®
  • Sku
  • TYF0912FC
  • Identity
  • 36140442980

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