Business Voucher Check Stock - Computer Laser Checks - 3 Checks Per Page, 1000 Sheets/3000 Checks, Blue Marble Check paper refills compatible with all VersaCheck software products Secure protection with micro-print lines, security screens, and artificial watermarks, and more. Top Check: 3.5" X 8 1/2" Middle Check: 3 1/2 X 8 1/2" Bottom Check: 3 1/2 X 8 1/2"