These popular computer checks simplify payments & support accounting software from Peachtree & many others! Handle all your accounts payable without the cost of multiple check stocks – ideal for firms with a single checking account! Compatible with your standard printer. Sheet format fits all standard laser & inkjet printers. Enhance check security. Optional TamperGuard Plus ‘ premium check paper offers enhanced security for an additional charge. Built-in check security. Trusted by 7,000 financial institutions nationwide, built-check security has features such as chemically sensitive paper, microprint border, invisible fluorescent fibers, erasure protection, security screen & warning box.