Derby is very well known for their standard double edge blades that will fit any double edge safety razor. The Derby razor blades are stainless steel and they are coated with a chromium-ceramic, tungsten, and platinum. This will ensure a smooth and safe shave that will make sure your skin remains irritation-free. Derby uses the most advanced equipment to maintain quality as each blade is perforated, hardened, and ground. Derby has created a great brand that can be used all over the world to obtain the perfect shave.