Using this double - head automatic dumpling mold is really easy. First, get your dough ready and place it onto the mold. Then, scoop your preferred filling and put it right in the middle of the dough on the mold. Press down firmly to seal the dumpling, and the mold will do the rest to create a perfect dumpling shape. As for things to watch out for, don't overfill the dumplings, or they might not seal properly. Also, when pressing, use even pressure across the mold. For maintenance, after each use, wash the mold with warm, soapy water. You can use a soft sponge to clean it thoroughly. Since it's made of stainless steel and pp material, it can withstand regular cleaning. Just make sure to dry it completely before storing it away to prevent any rust or damage. That way, your mold will last a long time and keep making great dumplings for you.