Your EFD mounts to your current desk or credenza and includes clamp and grommet brackets.The unit will move up and down over 14" with a gas spring arm. The monitor height can also adjust separately.The tray can be folded up and the EFD can easily be swung out of the way when you want to use your desk.The monitor mount will hold up to a 27" monitor. With the EFD+2 accessory kit (sold separately), you can hold 2 monitors, up to 24" each.The large 26.5" x 9" keyboard tray will hold your keyboard and mouse. Optional accessory tray (sold separately) holds even more.Holds up to 24 lbs total weight, including monitor(s), keyboard and accessories. Strong metal design keeps your items secure.You can sit part of the day, but you can also stand and take advantage of all the health benefits of moving around.Our product comes with a Manufacturer limited 1 year warranty as well as a customer service and tech support team that is always ready to help.