To use these sunglasses, simply put them on your child's face like regular glasses. When not in use, keep them in a protective case to avoid scratches. Clean the lenses with a soft, microfiber cloth and mild lens cleaner. Make sure your child doesn't bend or twist the frames. Also, remember that the color dots on the Flash Lights style are unique, so don't be surprised if they look different from pair to pair. Check the sunglasses regularly for any signs of damage and replace them if needed for continuous eye protection.