Self-expiring security badges are designed for direct thermal printers. Badges are designed to help increase security because they expire overnight and identify trespassers up to 50' away. Highly visible, red VOID indicator signifies badge expiration. To activate the one-part badge, simply peel badge off the liner and fold the tab back to the underside of badge. Badges are compatible with most direct thermal printers that can print to 2" wide labels, including Dymo, Zebra and Toshiba. Badges are not compatible with Brother printers.