Description: The key is permanently magnetized, will not degauss if don't close to the magnetic item. If the key lost accidentally, need to use the code card to duplicate a new magnetic key. 8mm thickness chain, alloy forging, anti-hydraulic shear. Easy to lock without a key, waterproof and dustproof design on the key port. The magnetic are hidden inside the key in the order, only keys with the same magnetic sort can open the lock. Application: bicycle, motorbike, motorcycle, scooter, door etc. Specification: Material: Alloy Key Cylinder: Brass Key Cylinder Total Length: Approx. 100cm / 39inch Chain Thickness: Approx.8mm / 0.3inch Lock Head Length: Approx.8cm / 3.1inch Lock Head Diameter: Approx.3cm / 1.2inch Color: Black Package Includes: 1 Piece Bicycle Chain Lock 3 Pieces Magnetic Keys
