Volleyball is a game for two teams of two or more players, and may be played indoors or outdoors on a beach setting. The equipment given is that specified in the United States Volleyball Association's domestic competition regulations. Recreational or intramural play may have different equipment specifications. Before purchasing equipment or beginning a match, check with the appropriate officials for any equipment or rules changes.
The Net
A volleyball net is made of 10 cm square black mesh. The net is 9 1/2 to 10 m long and 1 meter wide. There are bands along the top and bottom of the net through which cables or cords are threaded, then tied to the posts to keep the net taut. The top band is 7 cm wide and the bottom band is 5 cm wide. Bands at the side of the net are optional. Antennae made from flexible rods are attached at the sides of the net and are considered a part of the net.
The Posts
The posts support the net. They are located about 1 m outside the sidelines and are 2.55 m high. It is important that the posts be attached without wires and be padded to reduce the change of injuries. Alternately, net systems may be mounted to the ceiling.
The Ball
A volleyball is 65 cm to 67 cm in circumference and weighs 260 to 280 g. The exterior of the ball should be made of flexible leather or synthetic leather. A bladder inside the ball, made of rubber or like material, should be inflated to a pressure of .300 to .325 kg/cm2.
Individuals and Teams
An individual's uniform typically consists of a jersey, shorts and socks. Team uniforms should be the same. Team jerseys should have contrasting numbers 15 cm tall on the center front of the jersey and 20 cm high on the center back of the jersey; players should be numbered 1 through 18. The captain's number must be underlined on the front. If the weather is cold, warm-up suits that meet the same criteria may be permitted by the referee. Shoes, which are not considered part of the uniform, must have flexible, nonmarking soles. Hats and jewelry are not permitted except in the case of religious observance or medical alert jewelry.
Beach Volleyball
The net used in beach volleyball is 10 cm square mesh but is not required to be black. The net is shorter, only 8 1/2 m long. Top and bottom bands are 7 cm wide and may have advertising on them. Side bands may also have advertising on them. Net height may vary. The volleyball must be resistant to humidity and brightly colored; the circumference is generally the same but the internal pressure is .175 to .225 kg/cm2. Individuals may wear shorts or bathing suits; some tournaments may require tank tops. Beach volleyball is played barefoot.
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