VersaCheck’s TopSecure Check Paper features high-quality, professional check paper that includes the industry’s highest level of security and fraud-protection currently available. In addition to our standard security features, which include security watermarks, UV fluorescent marks/embedded fibers, our TopSecure blank checks have full erasure/tamper protection and our revolutionary DNA fraud-protection. With patented INKcrypt DNA Biomark technology, each check is individually identifiable with a unique Biomark containing DNA strands, globally trackable, and absolutely counterfeit proof. Unlike physically printed images, holograms, and other visible/invisible marks, the INKcrypt DNA Biomark cannot be reproduced, altered or emulated by any unauthorized third-parties. TopSecure blank check paper stock is compatible with any financial software including VersaCheck, QuickBooks, Quicken, Sage, Money and more. Simply load the check paper into your printer, input desired check content into your software and print (a 50-80% savings compared to pre-printed/mail-order checks). EACH PACK CONTAINS: Form 1000 TopSecure Business Checks (letter size, 24lbs, 1 check on top, 2 voucher stubs below, perforated at 3. 5”, 7” and 10. 5”) and a Print Validation Code. Additional print codes included FREE in all VersaCheck Refills, VersaInk MICR ink & VersaToner MICR toner packages. SECURITY FEATURES: Unique INKcrypt DNA Biomark, invisible UV fluorescent bars on sides of check, invisible UV fluorescent micro-fibers embedded into check background, erasure protection, Watermark on back of check, unique security icons, and many more. Checks printed with TopSecure check stock cannot be photocopied, altered or counterfeited. All UV fluorescent elements become visible under ultra-violet light.