Ten-pin bowling line and is applied for at least down the lane from that point. USBC rules specify that a pin must be tall and about wide at its widest point, where a rolling ball would make contact. There are additional measurements which delineate the shape. The weight of a single pin must be at least 3 pounds 6 ounces and no more than 3 pounds 10 ounces (1.53–1.64 kg). Within a set of ten pins, the individual weights may vary by no more than 4 ounces (113.4 g), if made from wood or plastic coated, or just 2 ounces (56.7 g)
Five-pin bowling counter pin had to be knocked down to score any points). The rule change went in effect in 1968 in eastern Canada, but the Western Canada 5-pin Bowling Association rejected the change, and as a result there were no national championships until 1972 after the west accepted abolishing the counter pin. (Although some leagues continued with the counter pin system for several more years.) Five-pin bowling allows for more strategy in its play than the ten-pin variant, because of the differing point values for each pin. For example: If a player fails to score a strike in 10-pin bowling, it