This First Alert Digital Security Box is secure and large enough to store laptops up to 15-inches. The box holds 8-1/2 by 11-inch paper flat, and is constructed with double steel walls and one oversized door bolt for optimal security. Choose your own 3 to 8 digit combination and reprogram it any time for easy access and peace of mind. The Security Box also includes a mounting kit, fully carpeted interior with removable shelf, an override key for immediate emergency access in the event of electronics failure.