MPx6 Euro Double Cylinder. Keyed Alike. Overall length, external and internal dimensions are; 100mm (40/60mm). These MP 6 pin cylinders provide a high degree of security, having met the standards identified by the Secured by Design, the UK policed flagship initiative. Features include; anti drill, anti plug, anti pick and anti bump. Fire door rated. Certified to British/European standards (BS EN 1303) and carries the Security Standard Kitemark. Comes with a 5 year mechanical guarantee. suitable for all domestic, commercial and industrial use.