The VIER CYLINDERS V5 70mm Oval Double Cylinder offers premium security for doors requiring key operation from both sides. This high-quality cylinder features a satin chrome finish and incorporates advanced security features including anti-drill and anti-pick protection, plus a break-off system to prevent forced entry. Certified to BS EN 1303 standards and suitable for fire doors rated FD30-60, this cylinder is keyed to differ, meaning each lock operates with its own unique key. The 70mm oval profile design ensures compatibility with a wide range of multi-point locking systems, making it an ideal choice for both residential and commercial applications where security and fire safety compliance are paramount.