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
Ten-pin bowling many fictional works. One of the most notable recent examples is "Harry Potter and the Philosopher's Stone" by J. K. Rowling. Although it and its sequels establish that the magical characters featured know nothing about the non-magical (i.e., "real") world, "Philosopher's Stone" reveals that one major character, Professor Albus Dumbledore is a fan of ten-pin bowling. Since the electronic gaming industry began, ten-pin bowling has been seen in many formats on many big name gaming machines. Mattel's Intellivision game line introduced "PBA Bowling", the first fully electronic bowling game, in 1980. JAMDAT Mobile (now known as EA Mobile), made the