“Over-arm bowling” is the most unnatural and toughest skill for a player to learn. The bowling arm has to come from behind the body, over the shoulder and end up front of the body. Usually certain distance is ran to get momentum, its called ‘run-up”. The purpose of a bowler is to throw the ball from 22 yards. If he over steps the crease than he is penalized. He is also penalized if he is bowling too wide either side of batsman’s stumps. The penalty is a one bonus run added to batting team. There are two of bowlers, slow and fast. The slow ones usually are called the spinners, as they try to use their finger/wrist to part spin. they bowl slow through the air, and get spin from the surface. The fast bowlers use speed, swing, seam and bounce. A new ball is very helpful for fast bowler as turbulence plays great role in helping bowlers to swing the ball. Speed of the ball makes it difficult for batsman to react, and bounce makes it uncomfortable to execute their skill. Here the surface a very important role for bowlers.