FEATURES. Brink’s Resettable Combination Lock Box has a 79mm aluminum body with a vinyl-wrapped, hardened steel shackle for increased cut resistance. SECURITY. Easy-to-use four dial combination. Just set, reset and personalize your lock for added security. The large capacity easily accommodates up to 10 keys or key cards, allowing you to securely grant access to friends and family. STRENGTH. Steel shackle has a cut strength up to 2500 lbs. IDEAL USAGE. Ideal for both indoor and outdoor use, and can be affixed to the front door or a more discreet location such as backdoor, backyard or side gate. QUALITY YOU CAN TRUST. A global leader in security-related products and services, the Brink's name is synonymous with top quality products to keep you and your belongings safe. The Brinks shackled key safe has a steel body construction, a 4 dial resettable combination locking mechanism, and holds up to 10 keys or key cards. This shackled key safe is ideal in granting access to house cleaners, realtors, contractors, baby sitters, and children. Brinks product is designed to keep your home, loved ones, and your valuables safe by exceeding rigorous testing standards and using the highest quality materials to provide you with years of worry free use. Lifetime warranty included.