These weatherproof mailing labels are the perfect solution to your mailing and shipping needs. Durable polyester stands up against harsh weather and conditions. They resist moisture, scuffing, tearing and smudging. High-quality permanent adhesive sticks to tough surfaces, ensuring your label won't fall off your package. Labels are easy to customize and compatible with laser and inkjet printers. Each sheet includes two labels that measure 5-1\/2" x 8-1\/2".