![]() The choice of ball color is made according to the table color and its surroundings. ![]() Balls are now made of a polymer instead of celluloid as of 2015, colored white or orange, with a matte finish. The rules say that the ball shall bounce up 24–26 cm (9.4–10.2 in) when dropped from a height of 30.5 cm (12.0 in) onto a standard steel block thereby having a coefficient of restitution of 0.89 to 0.92. The international rules specify that the game is played with a sphere having a mass of 2.7 grams (0.095 oz) and a diameter of 40 millimetres (1.57 in). Table Tennis Plastic Balls 40+ mm with ITTF approval ![]() 卓球 (Takkyu) is the official name for the sport in Japan.乒乓球 (Ping Pang Qiu) is the official name for the sport in China, Hong Kong and Taiwan.Many of the best players in the world today come from China. Table tennis has been an Olympic sport since 1988. The International Table Tennis Federation (ITTF), the worldwide organization, was founded in 1926. Table tennis was invented in England in 1880. To play this game, people use bats and small celluloid balls. It is played by two or four people on a table. Table tennis, also known as Ping Pong (a trademarked name), is one of the most popular sports in the world, with players in many countries.
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