Using these sunglasses is super easy. Just put them on your face, adjust the temples for a comfortable fit, and you're ready to go out and look stylish while protecting your eyes. When you're not using them, keep them in the included case to prevent scratches. To clean the lenses, use a soft, lint-free cloth. Avoid using harsh chemicals or abrasive materials as they can damage the lenses and frame. Also, don't leave them in direct sunlight or hot places for a long time as it might affect the material quality.