User-friendly Drawer Slides The drawer slides can extend the drawer to a fully open position so that you can access anything in the drawer. Stainless steel slide coating with zinc plated is not easy to rust and can be used for a long time. When the drawer is closed, the rubber 'notch' at the end is conducive to reducing vibration and holding it closed in the 'shut' position. If the cabinet is pre-drilled, then use the holes that line up. Other holes give you a bit of adjustment if you don't drill the cabinet exactly on your mark.