Top security with magnet technology key protection: patent and trademark protection number of locking elements: up to 16 patent term: 2037 special feature: magnet technology protects against illegal 3d key duplications, modular cylinder can also be adjusted in length later note: prices each of the cylinders one contains three of its own keys as well as emergency and danger function. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.