World Aquatics Rules
🏛️Official — World Aquatics2.1 The Ball
Verdict
Men's ball: Circumference 68–71 cm (26.8–28 in), weight 400–450 g (14.1–15.9 oz); Women's ball: Circumference 65–67 cm (25.6–26.4 in), weight 350–400 g (12.3–14.1 oz); Waterproof, non-absorbent outer surface with a textured grip coating
Source: Rule 3
Send this to your friend — argument over.
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