Co-extrusion film bubble cardboard bag pink clothing cosmetic packaging bag thickened logistics express packaging bag envelopeMail bag: Available size: 4.3x6, 50 pcs per bag. These mail bags add a popular color to the mail and stand out from the rest of the mail, completely different from the standard mail bags. Your customers will look forward to the charming Sakura Pink envelope in the mail. These filled mails are lightweight mail envelopes and will not increase your shipping costs. Envelopes: This padded envelope has a durable surface and is ideal for replacing paper versions that will be torn by sharp, heavy or oddly shaped products. It is also made of multi-layer polyethylene sheet, which provides excellent protection for transportation.Multi-purpose bubble mail: You can use these mails to mail cosmetics, paintings, fashion accessories, jewelry, medicines, seeds, bulbs, etc. They are fully filled to protect fragile items during transportation. The laminated top allows you to easily stick self-adhesive stamps and address labels.