100 - 14.5x19 Fosmon Self-Seal Tear-Proof Polyethylene Mailers (100 Pack) 100x High Quality PolyAir Self Sealing Poly Mailers Water, Tear and Puncture resistant mailers The silver inner layer provides you with confidentiality High strength adhesive provides a durable closure that's water and dirt resistant High-efficiency poly mailers are perfect for shipping a wide variety of non-fragile items.