Bowling ball to skid longer before reacting (hooking). Reactive cover stocks finishes include "matte" (aggressive reaction), "shiny" (longer skid distance than matte finish), "pearl" (greatest skid distance among reactive cover stocks), and "hybrid" (combination of skid distance and back end reaction). Duckpin balls weigh each, with up to three balls delivered per round (or "frame") of bowling for one bowler. The duckpin ball has a maximum diameter of , slightly larger than a candlepin ball but, like a candlepin ball, contains no finger holes. Duckpins are correspondingly shorter and lighter than their ten-pin equivalents and it is more difficult to knock them
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