Using this 5mm Rubber Wheel Coupling Kit is easy. First, find the appropriate place on your indoor robot where the coupling needs to be installed. Then, put the washer in place, followed by the shaft coupling. Secure them tightly with the M8 screw. Make sure the installation is firm to avoid any loose parts during the robot's operation. When it comes to maintenance, regularly check if the screws are tight. If you notice any wear and tear on the rubber parts, it might be time to replace the coupling kit. Also, keep the kit clean and dry to extend its lifespan.