Electric Height Adjustable Standing Desk includes a motorized base and 48W x 24D top surface with built-in wire management Durable thermally fused laminate desktop offers superior resistance to scratches and stains Welded 16 gauge steel base legs and feet provide superb structural strength with a weight capacity of up to 176 pounds Three stage units lift the Adjustable Desk anywhere from 28 to 48 inches from the floor at a speed of 1.25 inches per second Anti-Collision Sensor reacts quickly to stop the Desk from moving up or down when an object is in the way