CARL - CUI81137 Organize and secure keys to streamline your operation using this Combination Key Cabinet. Safely store up to 137 keys using color-coded and numbered hooks for easy reference. Four-digit combination adds an advanced level of security to keep all your keys safe and protected. Use included keys as an alternative to gain access to your cabinet. Hanging reference sheet provides an organized, simple way to locate the exact key you need. Drop-in, plastic sleeve tethered to the hinge inside the cabinet provides a hands-free reference. Cabinet is perfect for homes and businesses that regularly store multiple keys, such as property managers, car dealerships, repair shops and more. Pre-drilled mounting holes and hardware are perfect for easy installation.