Purpose Derby Extra Double Edged Razor Blades are of a superb quality and suitable for all safety razors. They are chromium-ceramic, platinum, tungsten and polymer coated for optimum shaving comfort. Method Derby Extra Double Edged Razor Blades can be used with any double edged ...Purpose Derby Extra Double Edged Razor Blades are of a superb quality and suitable for all safety razors.
They are chromium-ceramic, platinum, tungsten and polymer coated for optimum shaving comfort. Method Derby Extra Double Edged Razor Blades can be used with any double edged safety razor or snapped in half and used in a cutthroat razor. Why it Works Derby Extra Double Edged Razor Blades are triple coated for a sharpness that lasts.