I purchased this about three years ago, but I've only used it twice. It's a facial device that uses the ultrasonic vibration of the Myse to perform water peeling, effectively removing pore impurities. It can be used in the bath. I have stored it in a dark place. There are no noticeable stains or scratches, but I would appreciate it if you could purchase it with the understanding that it is a used item. The instruction manual is missing. The box is also not included. You can find instructions on how to use it by searching online. Thank you for your understanding.