Razor be used on both sides, with two open edges. The blade on the double-edged safety razor is slightly curved to allow for a smoother and cleaner shave. In 1901, the American inventor King Camp Gillette, with the assistance of William Nickerson, patented a new variation of safety razor with disposable blades. Gillette realized that a profit could be made by selling an inexpensive razor with disposable blades. This has been called the razor and blades business model, and has become a very common practice for a wide variety of products. Many other brands of safety razors have come and gone.
Razor Fist hands with steel blades. Razor Fist battled Shang-Chi, and was accidentally shot to death by Carlton Velcro's guards. Doctor Doom later constructed two robot duplicates of Razor Fist, which he pitted against Shang-Chi. Called Razor-Fist because of his fast punches, this man and his brother took the same title and pretended to be only one person. Each brother lost one hand in a car accident, which were subsequently replaced by long knife-like stabbing weapons by Carlton Velcro. Velcro employed the brothers at his mansion on an island in the Marquesas. The brothers were assigned by Velcro to hunt down Shang-Chi