The M21-500-499 is a continuous label cartridge containing B-499 nylon cloth material for wire and cable identification. This black-on-white label material is highly pliable, allowing it to conform easily to tightly curved surfaces for a secure wrap. The label has a width of 0.500 inches (12.70 mm), and the cartridge contains a 16-foot (4.88 m) long continuous roll. It is suitable for creating wrap-around wire markers or flags and is compatible with printers such as the BMP®21-PLUS.