The ball must be oval and made of four panels.
280 - 300 millimetres
740 - 770 millimetres
580 - 620 millimetres
Leather or suitable synthetic material. It may be treated to make it water resistant and easier to grip.
410 - 460 grams
65.71-68.75 kilopascals, or 0.67-0.70 kilograms per square centimetre, or 9.5-10.0 lbs per square inch.
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.
Balls of different sizes may be used for matches between young players.