The APECS AP Double Euro Cylinder is a BSI 3 Star Kitemark, Sold Secure Diamond Standard Cylinder which offers maximum protection. These may also be branded as Mila. The APECS/MILA cylinder guards against snapping, drilling, plug-extraction, picking and bumping. The cylinder usually comes withy 3 keys. Additional keys can but supplied from some APECS authorised centres and other experienced locksmiths. Copying these keys can take between 5 - 10 minutes per key. Its best to contact your local key cutter beforehand to check if they can copy them.