Complete peace of mind: The safe comes with two anti-saw locking pins (16 mm) and a steel body for tamper protection Steel construction and felt lining inside to protect against scratches and damage There are 4 pre-drilled holes (with bolts) to fix the safe to the wall, increasing safety Incorrect Input Alarm Feature: Entering an incorrect code 4 times will sound an internal alarm for 3 minutes and lock the codepage during that time. Manual override can be used during the alarm. Convenient to operate digital keypad with LCD display and programmable combination of 3 to 8 digits. In the event of battery failure, the safe can be operated with a manual override function with 2 security override keys provided. Solid steel structure for higher resistance to breaking and opening Equipped with an electronic lock and digital pin access, Yale offers quick setup and easy operation.