Using these Cosmis Racing wheels is straightforward. First, make sure they're compatible with your vehicle before purchasing. Once you've confirmed compatibility, you'll likely need a professional to install them, as some modification might be required. During installation, ensure all bolts are tightened properly to avoid any safety issues. As for maintenance, regularly clean the wheels with a mild soap and water solution. Avoid using harsh chemicals as they can damage the Hyper Gold finish. Also, check the tire pressure frequently to ensure even wear on the wheels. If you notice any signs of damage like cracks or bends, have them inspected by a professional right away.