Articles in the Law 2: The Ball Category
2.2 Dimensions
Posted by IRB Laws on July 14th, 2009Length in line 280 – 300 millimetres
Circumference (end to end) 740 – 770 millimetres
Circumference (in width) 580 – 620 millimetres
2.3 Materials
Posted by IRB Laws on July 14th, 2009Leather or suitable synthetic material. It may be treated to make it water resistant and easier to grip.
2.5 Air Pressure at the Start of Play
Posted by IRB Laws on July 14th, 200965.71-68.75 kilopascals, or 0.67-0.70 kilograms per square centimetre, or 9.5-10.0 lbs per square inch.
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