what are the materials used in volleyball?
['The Ball. The standard volleyball is made of leather or synthetic leather, weighs between 9 and 10 ounces and has a circumference of 25.6 to 26.4 inches. ... ', 'The Net and Court. ... ', 'Lines. ... ', 'Posts and Cables. ... ', 'Antenna and Side Bands. ... ', 'Knee pads. ... ', 'Shoes. ... ', 'Clothing and Jewelry.']