any way when swinging at a no-ball, though they can be against a wide. The different ways of making the ball move unpredictably: Cricket bowlers, since they are not restricted to a small strike zone as their target, also use a wide variety of approaches which are not available to baseball pitchers. These involve varying the line and length of deliveries and using unpredictable movement caused by the ball bouncing on the pitch before it reaches the batsman. Baseball pitchers, by contrast, must use changes in ball speed and movement (in cricket bowlers also vary ball speed) caused only by air friction and spin to deceive batters, as most pitches which come near touching the ground are ineffectively allowed to pass as balls. The ways in which the ball's design itself interacts with the movement: The raised undulating stitching on a baseball allows an accomplished pitcher to create a huge variety of motions in the air; even fastballs are thrown in such a way as to create certain kinds of movement. The cricket ball also moves in the air, swinging both inward and outward and even in reverse when the shine comes off the ball; but it achieves its most pronounced movement on the bounce, with seamers (fast bowlers) landing the ball on the seam to create slight but unpredictable turn, and spinners using spin to create significant turn and bounce variation. From where and how the ball is delivered: Furthermore, pitchers must begin their throw from a stationary position, while bowlers may run up to their delivery. (In the early days of baseball, the pitcher pitched from anywhere within a "box" and so had more flexibility as to where to stand when releasing the ball, before the 1880s.) Baseball pitchers also throw from an elevated mound ( above the level of home plate), while cricket bowlers are at the same height as the batsman (because every 6 deliveries which end of the pitch is used for bowling and batting switches) and must bowl with an overarm (or roundarm, a style rarely seen today) rotation of the arm during which the arm must not straighten by more than 15 degrees. (This was also a restriction on pitchers in the early days of baseball, abolished in the 1880s; today, baseball pitchers use a variety of delivery motions discussed below.) Speed of the ball: Despite the differences in delivery action, the delivery