The EADR-W gives you the best of both worlds. You can sit part of the day, as you always have, but you can also stand and take advantage of all the health benefits that come with standing and moving around. You, and your associates, will become healthier and more productive. Your EADR uses your current desk...no need to buy all new furniture. You can sit as you always do and then easily raise the large 32" x 20.5" desk and keyboard tray into 4 additional raised positions (up to 16.3" above your regular desk). With the easy side grip handles, making your adjustments has never been easier! The large surface can hold 2 monitors or a monitor and a laptop. The EADR is the only Adjustable Desk Riser that offers a retractable keyboard tray. The tray allows you to get into the most comfortable position and it is large enough to hold a laptop computer (with other risers you may have to move the laptop or the entire riser every time you change from sitting to standing). Another enhanced feature of the EADR is the grommet hole in the back for routing cables, or installing a monitor arm. The EADR uses gas springs and can easily raise and lower up to 50 lbs. It arrives completely assembled and ready to go!