Bowling ball Bowling ball A bowling ball is a piece of sporting equipment used to hit bowling pins in the sport of bowling. Balls used in ten-pin bowling are typically hard spheres with three holes drilled in them, one each for the ring and middle fingers, and one for the thumb. Regulating bodies such as the USBC maintain requirements for the properties of bowling balls, including size, hardness, and number of holes, as well as maintaining a list of bowling balls approved for competitive play. Other bowling balls, such as those used in five-pin bowling, candlepin bowling, and duckpin bowling are smaller,
Nine-pin bowling the United States, as well as regionally popular "small-ball" bowling sports of various types, do not have many facilities in existence for the nine-pin game in the 21st century. On the other hand, a modified version is played in the US state of Texas. This game is played by rolling a ball down an alley towards nine pins. Unlike the ten-pin ball — and like the ones used for the eastern North American "small-ball" bowling sports of five pin bowling, candlepin and duckpin — the ninepin ball mostly has no holes for the fingers, though there exist special balls with