Enjoy custom comfort & easy space management with the fully adjustable Fellowes Keyboard Tray! Simply grasp & rotate keyboard tray to your preferred work position. Use a single knob to adjust the height & tilt up to +0 / -10 for individual comfort. Both keyboard tray & mouse tray include soothing gel wrist supports. Mouse tray mounts to either right or left side or stows underneath for easy storage when not in use. Workstation Type: Curved; Diagonal; Straight; Sit-to-Stand Option: No; Height (+/- Desktop): +1.25" Above to -4.25" Below; Keyboard Tray Dimensions (W x D): 20.25" x 11.13".