Brady B-509 Magnetic back polyester is designed for use in cartridge form with the GlobalMark printer Brady B-509 is used for temporary, reusable and movable signs Magnetic sheeting with a white polyester surface Standard legend colors are black, white, red, blue, green, magenta, yellow, orange, process cyan, process yellow, process magenta 3-5 years (Average expected outdoor life of product will depend on user definition of failure, climatic conditions)