Transitions seamlessly from sitting to standing in seconds with pneumatic air cylinder height adjustment. Easily lifts a laptop and second monitor Remains stable even at a maximum height of 15.75". Chamfered edges keep wrists comfortable while typing and working Comes preassembled and can be easily added to any surface. Best standing desk converter for use with laptops Overall Dimensions: 29" W x 17.75" D x 1.75" to 15.75" H. Base Dimensions: 27.5" W x 15" D Weight Capacity: 20 lbs. Product Weight: 21.6 lbs. Color: Black