Golf is a competitive sport which requires hitting a small hard ball with clubs on a large outdoor course with the purpose of depositing the ball in a specified number of holes on the ground. Types of equipment necessary to play the sport of golf include golf balls; clubs for striking the golf ball; devices such as ball markers and tees, which aid in the process of playing a stroke; a golf bag to carry the equipment, and golf shoes, which feature metal or plastic spikes attached to the soles designed to increase traction as well as to help the player keep his balance during the swing.