self-adhesive sealing, tear resistance, to ensure the security and privacy of mail products. The widened side seal makes the package more secure and ensures that the bag will not damage due to the opening. The bubble lining provides a layer of padding that normal laminated envelopes ’ t, which can protect your items well during transportation. Features - Color: White. - Material: Pearlescent film + bubble film. - Size: 18.00X13.00X0.50cm/7.07X5.11X0.20inch. - The padded envelopes are lightweight and water-resistant. Lower the of your business and protect your products on the rainy or snowy day. - The bubble mailers come with a self-adhesive seal. Once the envelope has been sealed, it cannot be opened without visible signs of tampering. - They are padded enough to protect your things well during shipping. The laminated tops allows you to attach self-adhesive stamps and address tags easily. - Effectively add protection and cushioning by protecting your items from any vibration, scratches and dings. - for mailing cosmetics, jewelry, and bulbs, and any other precious goods. Package list: bubble bags