In a standard game of polo, one ball is typically used, known simply as the polo ball. The game is played with four players per team, who aim to score by hitting the ball into the opposing team's goal using long mallets while riding horses. The single ball must be in play throughout the match, leading to fast-paced action and strategic maneuvers. The use of a single ball requires teamwork and coordination, making it essential for players to develop a strong understanding of one another’s playing styles to maximize scoring opportunities.