Using these Hot Wheels cars is super easy. Just push them around on a flat surface and watch them zoom! They're great for solo play or for racing with friends. For kids 3 and up, adult supervision is recommended during play to avoid any choking hazards, as the cars are small. When it comes to maintenance, keep them away from water to prevent the decals from peeling. You can use a dry cloth to gently clean the cars if they get dirty. Store them in a dry place, away from direct sunlight, to keep their colors vibrant. Whether you're a new collector starting your journey or an experienced one adding to your collection, these cars will bring lots of fun.