The coating contains chromium for corrosion, tungsten to reduce friction, platinum for sharpness, and ceramic that binds all the layers together.
Derby Premium black blades are also available in double edge for classic double edge safety shaves.
Derby Premium black razor blades for shavettes and single edge razors. They smoothly shave off coarse stubble. The four-layer coating protects the skin from scratches, and the blade itself from premature rusting. One blade lasts for 4-5 shaving sessions.
The coating contains chromium for corrosion, tungsten to reduce friction, platinum for sharpness, and ceramic that binds all the layers together.
Derby Premium black blades are also available in double edge for classic double edge safety shaves.