The supple and elegant shape of the "ring" of the scissors is a design that is unique to Japan and is unparalleled anywhere in the world. The handles of the scissors, with their beautiful curves that have remained unchanged since ancient times, are formed to follow the curve of the base of the thumb of the gripping hand, and are designed to fit naturally in the palm of the hand. The iron is heated to the optimum temperature and then hand-formed into the desired shape. Although it may seem simple to bend, this requires high skill and processing is carried out while taking into account the "springback" that occurs after bending, which is unique to iron. The curve of the "ring" may seem casual, but it is an important process that accentuates the beauty of the finished product and greatly affects its ease of grip and functionality.