The poly mailer is lightweight self sealing poly mailers envelopes bags flat poly bags are designed for shipping non-fragile items that need minimal protection during shipment or are already packaged within a protective material. they are commonly used for shipping soft goods like books clothing and bedding or items packed within a protective package like shoe boxes, or other non breakable items. You can save cost if you choose these Postal Bags
The Poly Mailer Envelopes are durable with exceptional puncture resistance and tear strength self-seal adhesive closure is tamper evident & will not re-open once it has been pressed closed, labels & self stick stamps adhere securely and easily. Durable polyethylene film moisture resistant opaque for privacy 100% recyclable. The Plastic Mailing is lightweight, strong extremely.