Grommets for wire management File drawers with ball-bearing glides and keyboard tray sold separately Streamlined and geometric design Space-saving corner configuration The corner tower for the computer desk cannot be assembled without the full tower. It is the main support for the left and right sides of the desk The top is bolted down to the top of the desk The monitor is not optional to purchase The cabinet cannot be installed on both sides Removable top piece: Yes Bestar Hampton Computer Desk