The Happy Mail Designer Shipping 12 Bubble Mailers are a convenient and stylish option for sending packages. With a size of 8.5 inches x 11 inches, these self-seal mailers are perfect for shipping a variety of items. The bubble interior provides extra protection, ensuring your items are safe during transit. The Happy Mail brand ensures quality and reliability, making these mailers a great choice for businesses or individuals looking to ship items securely and efficiently.