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| Equipment |
| Specifications for Bowling pins are controlled by the ABC (American Bowling Congress). Just like lane dimensions there are tight tolerances placed upon individual pins, as well as sets of pins in the machine. |
The diagram below shows the heavier 3lb 10oz "Gold" pin that the PBA started to use in 1998. The second diagram illustrates the relationships between the arrows (on every fifth board to the pins). The arrows are placed on the lane in such a way as to enable the use of targetting systems to improve your strike and spare-conversion rate.
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