VADR-43 Height-Adjustable Sit/Stand Desk Riser offers the versatility to sit part of the day or stand and take advantage of all the health benefits that come with moving around. Spacious, 43" wide x 20-1/2" deep worksurface holds up to two monitors, a laptop and more. Ergonomic, extra-large, 35" wide x 10" deep keyboard tray sits 4" below the desktop. Enhanced Vertical Range (EVR) rises up to 21-7/10" and down to 4-7/10" to optimize the ergonomic position for people of all heights. Straight up-and-down motion minimizes required depth (21"). Gas-piston assist allows you to easily raise and lower up to 33 lb. Grommet hole lets you route cables or add an optional dual-monitor arm such as Rocelco DM2 (not included). Desk riser fits over your current desk with no need for additional furniture.