A golf ball is a small, spherical ball used in the sport of golf. It typically has a diameter of about 1.68 inches and weighs around 1.62 ounces. Golf balls are designed with a hard outer shell and a core that can vary in composition, affecting their performance. The surface of a golf ball features dimples, which help reduce air resistance and improve lift during flight. Golf balls come in various types, including two-piece, three-piece, and four-piece designs, each offering different levels of control and distance. Players choose their golf balls based on their skill level and playing style. The color of golf balls can also vary, with white being the most common, while others may be bright colors for better visibility.