The K-Traz F16L uses U-Locking security features, coupled with the practicality of a wind-up cable. It has a high level of tensile and torsional strength, making it highly resistant against theft and drilling. It features the Z-Safe locking mechanism which is a powerful double locking system, making the lock highly resistant against impacts and twists. Key Features: Level Of Security: 16/20 - Use in extremely high risk areas,Compact: Easy To Carry,Quick Mounting: Mounting Clip,3 Keys included,Loss of key service,Material: Steel Plates,Weight: 1343g,Cable Length 95cm / 37.4\",.