The Master Lock No. 5423D Wall Mount Push Button Lock Box provides a secure and durable solution for key or access card storage. Designed for permanent installation, this lock box features a 3-1/8in (79mm) wide metal body and a user-friendly push-button locking mechanism with an alpha/numeric telephone keypad format. Customizable combination settings, a spacious interior, and weather-resistant construction make it ideal for everyday and long-term use.