Rugby Ball

American Hub International
It weighs 410-460 grams.
The ball is made of leather or a suitable synthetic material.
It may be treated to make it water resistant and easier to grip.
Its air pressure at the start of play is 65.71-68.75 kilopascals, 0.67-0.70 kilograms per square centimetre or 9.5-10.0 pounds per square inch.
Rugby balls may be available during a match.