Bell Ballistic 610 Cable Lock with Lighted Key - Black The Bell Ballistic 610 cable lock with lighted key features 6ft-x-12mm HD steel cable with thicker, stronger HD steel that provides significantly more cut strength than the previous model. A dust cover protects key chamber from the elements. One standard key and one lighted key included, with free standard key replacement. Two CR1220 batteries included for lighted key. Security level rating: 3. 6 ft x 12 mm HD steel Thicker, stronger HD steel provides significantly more cut resistance Dust cover protects key chamber from the elements Free standard key replacement Includes one standard key, one lighted key with 2 CR1220 batteries Security level rating: 3