The Bell Ballistic 500 heavy-duty cable lock features 4ft-x-18mm HD steel with an outer, hardened steel sleeve and braided steel cable center that resists cutting and sawing. Thicker, stronger HD steel provides significantly more cut strength than 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. Gender: unisex. Age Group: adult.