Using this Bobrick napkin disposal is easy. Just open the self - closing door and drop your napkins into the removable plastic receptacle. When the receptacle is full, simply take it out, empty it, and put it back. For installation, make sure you have a wall opening of the right size: 11 1/2″ W, 17 1/4″ H, and 3 3/4″ min. depth. When it comes to maintenance, clean the stainless - steel parts with a mild cleaner to keep the matte black finish looking good. Avoid using abrasive materials that could scratch the surface. Also, check the hinges regularly to ensure the door and panel close properly. If you notice any leaks from the receptacle, it might need to be replaced.