have also cut into the straight razor's market share, especially since the 1950s. Straight razors eventually fell out of fashion. Their first challenger was manufactured by 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 razor sales are increasing globally and manufacturers have difficulty satisfying demand. Straight razor sales are increasing because they are perceived as a better value and more efficient product. Dovo in Germany reports that since a production low of less than 8,000 units per year in 2006, the company sells 3,000 units per month, and has 110,000 orders with production lead time of three years. The Dovo spokesman commented that around 2006, “we were producing less than 8,000 straight razors per year, The tradition of straight razor manufacturing had almost come to an end.” Dovo explains, that after the 2012 James Bond film Skyfall, sales of straight razors increased multifold, and that "built into a wave of sustained overdemand that we are still riding today". The increased sales have also led to an increase in the number of associated trades and artisans such as bladesmiths, leather craftsmen, and potters. Design criteria The design of the straight razor is based on the grind of the blade, the width and length of the blade, the handle, which also affects the balance of the razor, the material of the blade, and the finish and degree of polish of the blade material. Parts description The parts of a straight razor and their function are described as follows: the narrow end of the blade rotates on a pin called the pivot, between two protective pieces called the scales or handle. The upward curved metal end of the narrow part of the blade beyond the pivot is called the tang and acts as a lever to help raise the blade from the handle. One or two fingers resting on the tang