This unit is Terribly built.  The sink doesn't have any overflow built into the basin.  The basin itself puddles water in spots and does not drain properly.  The Drawer slides on Wood only and doesn't have any drawer hardware.  The drawer is also too far apart  and falls off on the track and onto the ground.  If I didn't already install this Terrible unit I would have sent it back.  DO NOT BUY THIS GARBAGE!!!!