Versa Check Air Blank Check Paper - Form #1000 Business Voucher Check on Top complies 100% with ANSI X9 banking standards. Compatible with all leading accounting solutions and check printing software. This package contains letter-size 24lb security blank check sheets, each sheet (8. 5" x 11") includes one check on the top third of page, two stubs below, micro-perforated at 3. 5", 7" and 10. 5" from top edge. Security features include erasure protection, micro print lines, security screens, and artificial watermarks. Blank check paper offers extra storage security and the convenience of updating checking information at anytime. For automated check clearing to comply with bank regulations please use Versa ink MICR ink cartridges in your inkjet printer or Versa Toner MICR toner cartridges in your laser printer.