Using this closing bar is simple. First, make sure your fridge is unplugged for safety. Locate the space between the two fridge doors where the old bar was or where the new one should go. Then, carefully place the new bar in position. Make sure it fits snugly. When you're done, plug your fridge back in. As for maintenance, keep the bar clean by wiping it with a soft, damp cloth regularly. Avoid using harsh chemicals as they might damage the bar. If you notice any signs of wear or if the bar doesn't close properly, don't hesitate to contact us. Before you purchase, double - check your fridge model to ensure this bar is the right fit for your appliance.