Incorporates security features recommended by the National Check Fraud Center. Compatible with most money management software programs. Security features include: Check-21 compliancy, VOID pantograph behind endorsement, security warning, VOID when copies, anti-splice backer, security features listing box, watermarks, check verification number, coin reaction, patterned background and microtext print. Size: 8 1/2 x 11 Paper Colors: Blue Marble Paper Weight: 24 lb.PRB04509. 04509. Paris Business Products Paris Business Products DocuGard Standard Security Marble Business Middle Check.