The clear packing slip pouches has a super sticky adhesive backing, which fits tightly and will not fall off even if you tear it hard, effectively preventing the loss of the shipping labels. The self-sealing packing list envelopes has good airtightness, is waterproof and moisture-proof, and is resistant to damage. It effectively protects the invoice/bill from being worn, creased, and wet, ensuring that the bill is flat and new. Mailing labels for envelopes is made of release paper, which makes it easy to use. You can complete the sealing operation with one hand by tearing and sticking, saving time and effort, and improving your work efficiency. Highly transparent, smooth surface and good feel, the bill in the bag is clearly visible, and the packing list information can be quickly identified and scanned without unpacking. The packing slip envelope is suitable for shipping labels, packing lists, invoices, delivery receipts, etc., meeting multiple needs such as document packaging and small item storage 500 PCS 9.5"x 13.4" Clear Packing List Mailing Envelopes - Fit 9.5x12 inch LettterEnvelope Mailers