This adjustable, heavy load mobile shelf unit has unlimited A/V applications. It features sturdy steel construction, 4" heavy duty locking casters and a safety lip on each level for total stability. 39-3/8" high and has three 27-1/2" x 20" shelves. Position the middle shelf to accommodate your A/V components. Black wrinkle finish provides a high-tech look. Shipped knocked-down, assembly required. Attachable 15 ft., dual outlet extension cord also available.