I purchased this about two years ago and used it for about six months, but I'm selling it now as I no longer have the opportunity to use it. The rim and inner part are gold-plated. There are some discolorations on the silver parts, but the gold plating is almost in a beautiful condition. There are some minor scratches from use. Please be aware of the above before purchasing. (From the website below) Retail price: 14,850 yen (tax included) Rim inner diameter: 17.08mm Throat diameter: 4.40mm Features: This is a model with a smaller rim inner diameter than 31, and it's an all-around type. The shallow U-cup smoothly responds to high ranges, and the deep V-cup responds to low ranges.