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Law 2 - The Ball
2.1 SHAPE
The ball must be oval and made of four panels.
2.2 DIMENSIONS
Length in line: 280 - 300 millimetres
Circumference (end to end): 740 - 770 millimetres
Circumference (in width): 580 - 620 millimetres
2.3 MATERIALS
Leather or suitable synthetic material. It may be treated to make it water resistant and easier to grip.
2.4 WEIGHT
410 - 460 grams
2.5 AIR PRESSURE AT THE START OF PLAY
65.71-68.75 kilopascals, or 0.67-0.70 kilograms per square centimetre, or 9.5-10.0 lbs per square inch.
2.6 SPARE BALLS
Spare balls may be available during a match, but a team must not gain or attempt to gain an unfair advantage by using them or changing them.
2.7 SMALLER BALLS
Balls of different sizes may be used for matches between young players.
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