Ball (The Ball) and feature measurement unit (Qualities and Measurements)
to the ball
first. Spherical
2. made of leather or other suitable material,
3. Circumference less than 62 cm and no more than 64 cm
4. The start of the match the ball must not weigh less than 400 grams and not more than 440 grams
5. Pressure the ball from 0.4 to 0.6 in the atmosphere (400-600 g. square centimeter) at sea level.
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