Size: 6” x 9” ,Easy to use and easy to load shipping label/folded packing list/invoice. Strong self adhesive, backing attaches securely to almost anything – paper, wood, plastic or metal. Highly transparency easy to scan the label or invoice from outside. It is waterproof and free of dirt. Even in the special rainstorm season, it can protect your documents from damage and deliver them on time. It is waterproof and free of dirt. Even in the special rainstorm season, it can protect your documents from damage and deliver them on time.