Our bubble mailers are made of good PE material, and practical. These bubble storage bag feels good and is great for packing. They are lightweight, waterproof and tearing-resistant, and can be used to shipping your valuable items like jewelry and glass adornments. Reduce your business transportation costs and protect your products in the rain or snow. Features -Color: Black. -Material: PE. -Size: About 37.00X29.00X0.50cm/ 14.54X11.40X0.20in. - This bubble mailer is waterproof, shaking-resistant and dropping-resistant, helping to ensure journey of your goods. - And you can freely your favorite patterns on the blank surface, or add your company's logo to create a unique bubble bag. - High durability and not easy to deform. Fine workmanship and good texture ensure practicality. - When you want to mail some valuable gifts to your friends, such as medals, jewelry and glass ornaments, this product is a good choice for you. - The surface of the envelope can be written with a marker pen or affixed with number, which is convenient and quick to identify. Package list: 5 x packaging bags