I purchased this when I signed up for a diet plan at an esthetic salon. It cost around 100,000 yen at the time. I bought it as a set with items made of far-infrared ray emitting fiber for the legs and arms. Because I was diligent about wearing the far-infrared ray fiber items, I only used this waist nipper two or three times. It has been stored in a drawer for a while, so please purchase only if you understand this.