【Trumpet Mouthpiece 24K Gold Plate Plating】 24K gold plate plating. Surface scratches can be removed, and processing of only the exterior is also supported. Thank you for viewing. The price of plating is constantly rising. The rising price of the materials themselves is one factor, but I don't think that's the only reason. When you request plating from a musical instrument store, in most cases, they will outsource it to a plating company. Nachtmusik BRASS FACTORY is planning to start processing services for its own products and has prepared dedicated equipment. Since it would be a waste to use it only for our own products, we have also started plating services for mouthpieces, etc. Therefore, we do not need to make a profit solely from plating, and we have set the price so that we can offer it at a low cost. Since the original purpose is to process our own products, we cannot plate as thickly as a professional plating company. However, conversely, for those who do not want much change, we hope you will enjoy the plating process as a way to dress up your instrument. Nachtmusik BRASS FACTORY refers to the "scientific experiments using equipment" by Mr. Silky, famous for trumpets, which concluded that "there was no effect on sound quality due to plating." Based on this verification result, we believe that there is no change or effect on sound quality. (However, we believe that there is a change with rhodium.) However, we believe that there may be an effect on the playing feel, so we are assuming that the plating will be thin. Even though it's thin, there is almost no difference in appearance.