Using this Saris Thelma Juvenile Wheel Holder Accessory Kit is easy. First, find a suitable place on your car bike rack to install it. Make sure it's firmly attached following the instructions in the package. When using it, always double - check that the wheel is securely held. As for maintenance, clean it regularly with a soft cloth to keep it in good shape. Avoid using harsh chemicals as they might damage the accessory. If you notice any significant damage or wear, replace the part as soon as possible to ensure safety.