DEVAISE Adjustable Height Standing Desk 55 Inch with Crank Handle/White ERGONOMIC DESIGN: Height adjustable desk allows you to work comfortably throughout the day SIT to STAND: Adjustable height from 29" to 45" with crank handle,meets most people's standing height needs LARGE WORKSPACE: 55.1"W x 23.6"D work space provides large area for 2 monitors at a comfortable position INSTALL CRANK EITHER SIDE: Adjusts with a pull-out crank, crank can be installed on the left or right as your habits COMMERCIAL QUALITY: Ensure years of use; Weight capacity up to 100 lbs