Using the Deltana 6 - foot Solid Brass House Number 9 is a breeze. First, pick a spot on your home or business where it will be easily seen, like near the front door. Then, use the appropriate tools to install it securely. For best results, make sure the surface is clean and flat. As for maintenance, a simple wipe with a soft cloth from time to time will keep it looking great. If it gets dirty, you can use a mild soap and water solution, but be sure to dry it thoroughly to prevent any water spots. Remember, this number is made for outdoor use, but extreme weather conditions over time might affect it, so keep an eye on it during harsh seasons. Also, when choosing a finish, pick one that matches your overall decor to make it blend in nicely.