This item was purchased by my wife about a year and a half ago. Regarding frequency of use, she used it about 10 times a month when she first bought it, but the frequency gradually decreased, and she hasn't used it at all for the past 3-4 months. There is a small scratch in the fourth photo. The switch and light function without any problems. Please refrain from purchasing if you are looking for a perfect product, as this is a used item. Phiten PHITEN Kenkouyoku Dome