* 1.The size is 15*20cm. These mailers add a po p of color to the mail and stands out from the rest, quite different from the standard one. customers will look forward to that charming white envelope in the mail. Those padded mailers are lightweight mailing envelops, will not add to your shipping costs. *2.Tear ance Envelopes: padded envelopes are with durable and sturdy surface, work great instead of paper versions that tear with sharp,heavy, or weird shaped products. Also made with multilayered polyethylene sheets, provide an excellent protection for shipment. *3. purpose Bubble Mailers: use these to mail cosmetics, paintings, fashion accessories, jewelry, medicines, s and bulbs, and a lot more. They are padded enough to protect fragile things during shipping. The laminated top allows you to attach self-adhesive stamps and address labels easily. *4. -Adhering Envelopes: The poly bubble mailers come with a self-adhesive tamperproof seal. Once the envelope has been sealed, it cannot be opened without visible signs of tampering. The smooth surface of the mailers makes it easy to stick stamps and address labels.