Heavy-duty steel enclosure designed to protect tower computers. Easy to install enclosures will give you peace of mind by protecting your technology investment and valuable data! This unit is designed to be installed beneath the desk (hanging) or on the desktop. Mounting screws are included. New "T" shaped front cross bar. Includes a combination padlock. Inside Dimensions: 20.75 inches H x 9.25 inches W x 17-21 inches D. Color: Black. Optional monitor kit available (Part#3007-BK). Optional adhesive mat can be purchased for desktop mounting which has a patented self-remove feature (Part#ADVMAT).