Deluxe Security Blank checks offer the quality and consistency you need to print your own. These affordable, Security blank middle laser checks help you manage all your accounts with one check stock. Multi-purpose business checks cost less than custom printing, and work easily with your accounting software. NEW SECURITY FEATURES! Unique multi-color background pattern discourages copying and cut and paste alterations. NEW SECURITY FEATURES! Thermochromic ink reacts to heat to deter and detect copying. NEW SECURITY FEATURES! High resolution border with intricate engravings that do not reproduce well on copiers.