Avery Self-Adhesive Visitor Paper Badges Roll with Expiring Tabs 4851E-THRThis Avery Self Adhesive Visitor Paper Badges Roll includes 250 badges designed to stick directly to clothing and remove cleanly without leaving residue. Each badge features a time expiring tab with patented VOID technology. Once activated, the tab gradually turns pink and displays the word 'VOID' after 4 to 6 hours. These badges are compatible with direct thermal printers. The red ink expiry tab contains specially formulated ink that activates upon