Using your Monster Jam Spin Rippers is a piece of cake. First, take the included ripcord and insert it into the back of the 1:43 scale truck. Then, quickly pull the ripcord out, and watch as your truck starts spinning and doing donuts just like in the live shows. Remember, always make sure to use the ripcord carefully to avoid any damage. When you're done playing, put the ripcord back in for more fun. As for maintenance, keep the truck clean and dry. Avoid dropping it on hard surfaces to prevent parts from breaking. If you notice any issues, like the truck not spinning well, check if the ripcord is inserted correctly or if there's any dirt inside. These trucks are made for kids aged 3 and up, so adult supervision is recommended for younger children to ensure safe play.