Using this Westinghouse crisper drawer support runner is easy. First, unplug your fridge for safety. Then, remove the old runner from the left - hand interior wall of the fridge. Take your new runner and align it with the slots where the old one was. Slide it in gently until it's firmly in place. After that, plug your fridge back in. When it comes to maintenance, keep the runner clean. You can use a mild detergent and a soft cloth to wipe it down occasionally. Check it regularly for any signs of wear or damage. If you notice any issues, it's a good idea to replace it right away. Also, make sure to always check your fridge model number before purchasing to ensure you're getting the right part.