Box was mislabeled as fail safe. These are FAIL SECURE. The HES ASSA ABLOY 1006 Electric Strike is a heavy-duty stainless steel body that is suitable for commercial use with all locksets. This self-closing electric strike comes in a sleek silver or black finish, making it versatile and suitable for various applications. It is designed to be fail secure, ensuring that the door remains locked in the event of a power outage. The package includes hardware for easy installation, making it a convenient choice for businesses looking to upgrade their entry systems.