Tennis ball: According to the International Tennis Federation (ITF), a typical tennis ball should weigh between 56-59.4 grams with a diameter of 6.54-6.86 centimeters. They should be yellow or white in colour, though most balls are yellow.
Tennis racket: A tennis racket cannot exceed 73.7 cm in length and 31.7 cm in width. The racket shall have a frame enclosing sturdy strings, usually made of nylon, interwoven in crossed and bonded pattern, and a handle.
The player is required to hit the ball with the middle of the racket - the part with strings which is also known as hitting surface.
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