Waterproof Shipping Labels with TrueBlock Technology, Laser Printers, 5.5 x 8.5, White, 2/Sheet, 500 Sheets/BoxDon't let a little rain or snow worry you when you need to send a package. Waterproof labels stand up to the toughest environmental conditions and extreme temperatures, while resisting scuffs, tears and smudges, so they remain easy to read. Ultrahold Adhesive sticks to more tough surfaces: metal, plastic, glass and more, ensuring your label doesn't fall off your package. They also resist. TrueBlock Technology completely covers everything underneath