The Victor DC475 transforms any sit-down desk into a sitting or standing desk. With the ability to support three monitors the surface can be raised up to 20" above the desktop for ergonomic placement of monitor, keyboard, mouse, telephone and papers while standing. Electric motor design allows easy custom height adjustment with the push of a button. The triple monitor holder is also height-adjustable with a range of 12.5" and comes at no additional cost. Work surface and monitor holders can be raised to the correct ergonomic height for users up to 6 ft 5". Need a break from standing? Simply push a button and lower the surface down to desktop level. Easy Tap Technology makes operation quick and simple. Press the button once to activate motor and raise desk. Press the button a second time to stop the work surface at desired height. Safety Sensor stops movement when obstacles are detected under the desk. Sleek wood construction and a durable laminate coating provides years of use with a modern style. The sturdy steel base and aluminum tower are built to last. Steel base has felt pads underneath to protect desktop surface. This standing desk converter rests on top of any desk or table.With no clamping or attachments of any kind to tie you down, the workstation is easily repositioned. Dimensions: 28"W X 23"L X 1 to 20"H and 52.5 lbs. Holds three monitors up to 23" wide and up to 12.5 lbs each.Can alternatively support two monitors up to 34" wide and 19 lbs each. Standard VESA mounting holes are required.