Fellowes 93841 Adjustable Standard Keyboard Platform, 20-1/4w x 11-1/8d, Graphite/Black Single knob adjusts keyboard height and tilt Tray rotates to preferred work position Mouse tray mounts on either side of keyboard tray or stows underneath Includes soothing gel wrist supports for personal comfort Glide Track Length 17-1/4" - 17-3/4",Item H x W x D (inches) 4.50 x 30.50 x 20.00