Sold as 1 Each. This wall mounted monitor and keyboard tray bracket attaches to any standard VESA monitor wall mount and creates an instant space-saving workstation. This monitor and keyboard tray wall mount bracket is compatible with any Mount-It! monitor wall mounts, and using an articulating mount adds more range. Choose a VESA monitor wall mount and mount it to a wall, connect the MI-7915 to the mount, and install your monitor and keyboard to the floating bracket. Supported by manufacturer's limited lifetime warranty. The 25' floating platform tray is wide enough for your keyboard and a mouse, can tilt downward up to 25 degrees, and is height adjustable up to 5'. Features pre-cut cable management ports to keep your wires organized, a mouse pad and wrist pad, and the frame is low-profile for an integrated look.