Advertising flags, or banner flags, are popular outdoor advertising tools used to attract attention and promote businesses, events, products, or services. They are typically made of lightweight and durable materials, such as polyester or nylon, and come in various shapes and sizes. These flags can be fully customized with logos, slogans, images, and messages that align with a brand's identity or marketing campaign. High-quality advertising flags are designed to withstand outdoor elements like wind, rain, and sunlight, ensuring they remain effective and last for an extended period.