DH Screwless Collection – new style with much less catching hair, creates smoother cutting. Good quality scissors for senior stylists, the quality of the scissors has reached 80% quality as good scissors made in Japan. A choice of good quality, long last cutting, and good price scissors for the stylists as the professional tools. Material by #440A, Japanese forged stainless steel, HRC 59 ~ 60 degrees. The Rockwell hardness factor indicates the hardness of the steel and the price level of your scissors. The higher the factor, the longer the useful life of your scissors will be. 440A - of all the 440 stainless steels, it has the least amount of carbon, but is most stain-resistant.