small poly mailers
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Most small poly mailers use a self-adhesive (self-seal) flap that peels off and presses down to form a tamper-evident closure for fast packing.
Small poly mailers are typically made from polyethylene or other plastic film and commonly include interior bubble cushioning (a plastic bubble lining) for padding and impact protection.
Protection varies by product: some mailers are described as waterproof, dustproof, shock‑proof and tear/puncture resistant, while others are labeled moisture‑resistant. Check individual listings for the specific protection claims and any manufacturer notes about limits (for example, waterproof vs water‑resistant).
Usable interior dimensions commonly fall around 4 × 7 inches to roughly 6 × 9 inches. Some products list usable sizes like 6.5 × 9 inches—verify the seller’s stated interior/usable measurements before purchase.
Many listings note that poly mailer surfaces accept ink, stamps, and adhesive labels easily. A smooth or plain finish is commonly provided to give a clear area for writing addresses and adding postage.