The 10 Poly bubble mailers are designed for shipping and mailing. They are made of plastic with small bubbles inside, providing cushioning for delicate items. These mailers are lightweight, making them cost-effective for shipping. They are commonly used by businesses and individuals to protect and transport their products or shipments securely. They feature a self-seal and peel-and-seal closure type, making them convenient for shipping. The mailers are also waterproof, adding an extra layer of protection for the items being sent.