A safety razor is an instrument that allows the safe removal of unwanted hair from any part of the body. The design of this device includes a guard that protects the skin from cuts while shaving.
Safety razors feature a blade that is held in place by a plastic or metal holder. The disposable razors feature a blade, a plastic holder and a plastic handle. The razor must be thrown away when the blade becomes dull. Some safety razors come as one-piece, two-piece or three-piece designs that are available with multiple blades and lubricating strips. Razor blades are made of a steel alloy to avoid corrosion due to exposure to moisture. The plastic parts are made of resins like polypropylene or polystyrene.