1000 Blue- Red- Blue- Prismatic Laser Check Stock, (Check At Middle) Blank Laser Checks, Laser Check, Bank Checks, Business Checks, or Personal Checks 1000 Blue- Red- Blue- Prismatic Blank Checks (Middle Position) polywrap protected Check at Middle Laser check paper has "TonerFuse" which causes the ink to be infused into the parer making it almost impossible to be tampered with 11 security features built into the check paper Letter Size Paper: 8" x 11". Perforation Positions: 3 & 7