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Ball pins, 10 ball pins are arranged in the form of an inverted triangle with a length of 91.40 cm on each side. The distance between the center of one pin and the center of the other pin is about 30.48 cm, and they are arranged in four rows. There are two labels on each pin, one is a manufacturing label, including: industry name, ABC/WIBC license number, ABC/WIBC license; the other is an ABC/WIBC label that conforms to the pattern provided by ABC/WIBC, but This label must be affixed exactly opposite the manufacturing label. Bowling ball generally consists of three parts: core, weight fortress and shell. A standard bowling ball has a diameter of 21.8 cm and a circumference of no more than 68.5 cm. The weight of the ball ranges from 6 to 16 pounds in 11 sizes. Each individual chooses an appropriate weight based on individual body weight, physical strength, arm strength, wrist strength and grip strength.
Game Method The ten-pin game consists of 10 squares. If there are no hits, each athlete may throw 2 balls in each of the first nine squares. Each player may throw 3 balls in the 10th square with a full hit or make-up, and each player must complete each square in the normal order. Bowling ball generally consists of three parts: core, weight fortress and shell. The pins in most arenas are now 3.4 lbs to 3.6 lbs, and 3.1 lb pins are rare. For amateurs, the lighter the pin, the greater the chance of falling over. Conversely, the heavier the pin, the less likely it is to fall all over, and the higher the requirements for hitting the ball, the speed of the ball, the rotation speed, etc.
Most of the pins in domestic regular games are 3.8 pounds, and occasionally there are 3.6 pounds. The weight of pins in international professional games is at least 3.8 pounds, and some are 4.0 pounds, or even higher.