Straight razor King C. Gillette: a double-edged safety razor with replaceable blades. These new safety razors did not require any serious tutelage to use. The blades were extremely hard to sharpen, and were meant to be thrown away after one use, and rusted quickly if not discarded. They also required a smaller initial investment, although they cost more over time. Despite its long-term advantages, the straight razor lost significant market share. As shaving became less intimidating and men began to shave themselves more, the demand for barbers providing straight razor shaves decreased. Since 2012, production of straight razors has increased multifold. Straight
Electric razor cord to drive a flywheel. Electric shavers fall into two main categories: foil or rotary-style. Users tend to prefer one or the other. Most rotary-style shavers are cordless—they are charged up with a plug charger or they are placed within a cleaning and charging unit. The first person to receive a patent for a razor powered by electricity was John F. O'Rouke with his US patent 616554 filed in 1898. Others followed suit, such as the American manufacturer Col. Jacob Schick who patented their first electric razor in 1930. The Remington Rand Corporation developed the electric razor further, first producing