Using these Brizo Jason Wu Widespread Lavatory Low Cross Handles is a breeze. Just turn the handles to adjust the water flow and temperature. It's simple and intuitive. When it comes to installation, make sure to follow the included instructions carefully. If you're not sure, it's a good idea to hire a professional. As for maintenance, wipe the handles regularly with a soft, damp cloth to keep them clean. Avoid using abrasive cleaners as they can damage the luxurious WD finish and the Guyana Teak Wood accents. Also, remember that this product contains lead, so always wash your hands after installing or removing it. And if you have any concerns about the lead exposure, check out www.P65Warnings.ca.gov for more information.