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pressure gauge for basketball standard equipment tool for checking pressure in a basketball ball

NBA Chooses Pressure

There are some references to the circumference of an NBA basketball; however, there is nothing about circumference in the rules. NBA only lists the pressure in the rules governing equipment.

Official Rules of the National Basketball Association
Rule No. 1—Court Dimensions–Equipment
f. (1) The ball shall be an officially approved NBA ball between 7 1 /2 and 8 1 /2 pounds pressure.
(2) Six balls must be made available to each team for pre-game warm-up.

References:
Official Rules of the NBA 2013-2014 – http://www.nba.com/media/dleague/1314-nba-rule-book.pdf
Photo – www.matchwinner.co.uk/ball-pressure-gauge.html

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Sports Balls is a group of sports enthusiasts interested in the official specifications of balls used as sports equipment. As hobbyists, we are continually amazed at the level of detail used to accomplish fair play.

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