AnthroDesk ErgoConvert Electric Standing Desk Extender / Converter (Black) Convert your existing desk and move from sitting to standing with the push of a button, assemble in less than 10 minutes Electric height adjustable controls give you an infinite number of heights you can finely adjust for your perfect ergonomic height Motorized column is CLEAN and SLEEK, and has a standard VESA mount for your monitor; or just use your existing monitor stand on the height adjustable platform No clunky springs that will lose elasticity and cause instability while moving Powerful motors can lift up to 80 lbs and comes with a 5 year warranty