Using this Emax Interceptor FPV RC Car Steering and Suspension Kit is easy. First, make sure your RC car is turned off. Then, carefully remove the old steering and suspension parts according to the car's manual. Install the new parts from the kit in their place, ensuring they fit snugly. When using your RC car, try to avoid driving on extremely rough or sharp - edged surfaces as this can damage the parts. For maintenance, regularly check the parts for any signs of wear and tear, like loose screws or cracks. If you notice any issues, replace the parts as soon as possible. Also, keep the parts clean by gently wiping them with a soft cloth after each use. If you have any questions during the installation or use, don't hesitate to contact our staff.