Ten-pin bowling regulations, identification letters and numbers, and general wear from normal use. For much of the history of bowling, bowling balls were made using a three-piece construction method. Starting in the mid-1990s, however, most manufacturers switched to a two-piece method. In response to these innovative ball designs, the American Bowling Congress placed further restrictions on the technical characteristics of the ball such as the radius of gyration and hooking potential. A game of bowling consists of ten frames. In each frame, the bowler will have two chances to knock down as many pins as possible with their bowling ball. In games
Nine-pin bowling in knocking down both of these pins in the allotted two rolls, the third bowler will attempt to knock down the remaining pins. This will continue until the remaining pins are knocked down or until the end of the frame. Once all pins are knocked down, the “12-pin”/”Redhead” is left standing alone (see below), or the end of the frame is reached, all nine pins (a Full House) will be reset. Something that makes nine-pin bowling different from ten-pin bowling is that the bowlers do not have to bowl in the same order in each frame. Each team can designate