All additional equipment is determined by FIVB regulations.
| 3 | BALLS | |
| 3.1 | STANDARDS | |
| | The ball shall be spherical, made of a flexible leather or synthetic leather case with a bladder inside, made of rubber or a similar material. | |
| | Its colour may be a uniform light colour or a combination of colours. | |
| | Synthetic leather material and colour combinations of balls used in international official competitions should comply with FIVB standards. | |
| | Its circumference is 65-67 cm and its weight is 260-280 g. | |
| | Its inside pressure shall be 0.30 to 0.325 kg/cm2 (4.26 to 4.61 psi) (294.3 to 318.82 mbar or hPa). | |
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