Single knob offers quick and easy adjustment of height and tilt. Platform swivels to preferred position. Keyboard and mouse gel wrist rests for comfort. Fits virtually every keyboard including the MicrosoftÂ® Natural. Workstation Typeâ€”Diagonal, curved or straight Glide Track Lengthâ€”17-5/16" Keyboard Tray Dimensionsâ€”20-1/4 wide x 11 long.