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 coil-style lock is applicable. Material: Constructed from steel as indicated by the term “Steel Coil” in the product title. : Requires a physical key for locking and unlocking, consistent with the described key-operated functionality., Manufacturer: WEaaDSkZP