Using the Deltana 4-inch Solid Brass Number 1 is easy. Just find a suitable spot on your home or business, like on the door or next to it, and attach it securely. When attaching, make sure the surface is clean and dry. As for maintenance, simply wipe it with a soft cloth regularly to keep its shine. Avoid using harsh chemicals as they may damage the finish. If it gets dirty, use a mild soap and water solution, then dry it thoroughly. This number is durable, but be gentle when handling it to prevent any dents or scratches.