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 Blade named the "Oyster", the car was soon called the Razor Blade. The car was driven by S. C. H. Davis for the attempt at the one-hour light car record. The car lapped consistently at the Brooklands circuit at 103–104 mph but the front offside tyre came off and after having a new tyre fitted, the same wheel shed its tyre several more times at speeds higher than , until the record attempt was abandoned. The Razor Blade was raced regularly during the 1950s and was sold to the Harrah Motor Museum in the USA, that subsequently became the National Automobile