Using these Deltana 6x6 square hinges is easy. Just attach them to your door and the door frame with the provided #14 x 1-1/2 wood screws. Make sure to align them properly for smooth operation. When cleaning, use a soft cloth and a mild cleaner to keep the brass finish looking great. Avoid using abrasive materials that could scratch the hinges. Check the screws periodically to ensure they are tight. With proper care, these hinges will serve you well for a long time and keep your doors opening and closing smoothly.