The left side panel is held into place with two thumbscrews, the right side panel is not removable as it is riveted into place. On the left side panel is a large perforated area to allow outside air to enter the case and pass through the internal air duct. The bottom of the case has audio equipment type feet fitted with a foam type felt. There are holes available if the user wishes to add casters (not supplied) to the bottom of the as opposed to using the feet.