Type: Universal Anti-Theft Steel Coil Motorcycle Lock Bicycle Lock with Key. Function: Provides anti-theft security for motorcycles and bicycles using a steel coil design with key-based locking mechanism. Compatibility: Fits standard motorcycle and bicycle frames where a universal steel coil lock with key is required. Material: Constructed from steel as specified in the product title, forming the coil structure of the lock. : Requires a physical key for locking and unlocking, consistent with the described key-operated functionality., Manufacturer: VJSlwpi