Using these GENTLE MONSTER Her G1 sunglasses is easy. Just put them on your face like you would with any other pair of sunglasses, and you're ready to go out and look stylish while protecting your eyes from the sun's UV rays. When it comes to cleaning, use a soft, lint - free cloth to gently wipe the lenses and frame. Avoid using harsh chemicals or abrasive materials as they can damage the lenses or the frame. Store them in a protective case when not in use to prevent scratches. And remember, these sunglasses are for outdoor use, so don't wear them in low - light indoor environments for extended periods.