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 Nine-pin bowling Nine-pin bowling (also known as ninepin bowling, nine-pins, 9-pins, kegel, etc.) is a bowling game played primarily in Europe. European championships are held each year. Over 90,000 members are on teams in Germany, often playing in officially registered "Bundeskegelbahnen" (association bowling alleys) to be found in almost every sizable town. In Europe overall, there are some 130,000 players. Nine-pin bowling lanes are often found in Austria, Belgium, Germany, Luxembourg, the Netherlands, Estonia, Switzerland, Serbia, Slovenia, Croatia, Poland, Macedonia, Hungary, Brazil and Liechtenstein. The English-speaking countries, having a predominance of facilities for the modern ten-pin sport which originated in