guard your id identity protection security prevention stamp roller (deluxe multi-color 4-pack) plus with identity theft protection stamps from guard your id handy, it’s quick and easy to ensure your private information stays safe. this guard your id roller delivers an encrypted pattern in oil-based ink that penetrates paper, leaving text like your name and address unreadable on both sides of non-glossy paper. use it on documents like bank statements, bills, postcards and mail.