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 react to a ball rolled or pin knocked down. When bowling on free fall pinsetters, the bowler would have to press a button to initiate a pick-up cycle to clear downed pins lying on the pin deck. If automatic scoring is in use, all automatic resets are actually initiated by the scoring computers. The lower operating and maintenance costs of the string pinsetter eventually led to the demise of free-fall pinsetters. When a bowling centre retires free-fall pinsetters, the old machines are usually bought by other free-fall equipped bowling centres and are disassembled for parts. Free fall pinsetters are still