DO NOT BE A VICTIM! CHECK WASHING IS A FORM OF CHECK FRAUD WHERE CRIMINALS STEAL CHECKS FROM THE MAIL AND ERASE THE HANDWRITTEN INK USING COMMON HOUSEHOLD CHEMICALS. THEY THEN REWRITE THE CHECKS TO THEMSELVES FOR ANY AMOUNT THEY CHOOSE. THE PIGMENTED INK IN THE 207 GEL PERMANENTLY BINDS ITSELF TO THE PAPER FIBERS IN THE CHECK, AND CANNOT BE WASHED OFF OR REMOVED! THE NEW AND IMPROVED UNI-GLIDE GEL INK FORMULATION OFFERS A CLEAN WRITE EVERY TIME. COMPLIES WITH ISO 9001.