FeaturesB-509 magnetic back polyester is designed for use in cartridge form with the GlobalMark® printerEasiest and quickest material for removing and repositioningNon-adhesive magnetic material that can be printed on directly0.0181 in THK materialThe printed legend withstands up to 500 cycles5 years shelf life when stored at 70 deg F and 40 to 50% relative humidityAbrasion and chemical-resistant