According to FIFA's laws of the game, the ball should not weigh less than 14 ounces (410 grams) at the start of each match.

It should weigh not more than 16oz (450 grams), and be between 68 and 70 centimetres in circumference. If the ball bursts or becomes defective, the match is stopped and then restarted by dropping the replacement ball at the place where the first ball became defective.