A higher clipper number results in a longer haircut. Barber clippers come with guards that modify the cutting length. The size of the blade guard gives barbers insight into the haircut's length and outcome. A client requesting a number two fade desires an extremely close cut at the sides and back, whereas someone asking for a number six taper prefers a much longer style. The number associated with the cut corresponds to the guard size used. Lacking knowledge of clipper sizes could lead to an undesired haircut length.
