This genuine Samsung auto-close roller (DA66-00440A) is vital for ensuring your refrigerator door closes securely if left slightly ajar. Designed for various Samsung French door models, it helps maintain food freshness by preventing cold air loss. The roller is crafted from a durable PA6 Md40 material blend, offering enhanced longevity. Before installation, unplug your refrigerator to safely replace the roller. Carefully check your appliance's model number to confirm compatibility with this part.