There are some equipment that all tennis players have:
Modern tennis rackets vary in length, weight, and head size. 21 to 26 inches (53 to 66 cm) is normally a junior's length, while 27 and 27.5 inches (69 and 70 cm) are for stronger and taller adult players. Some are also available at lengths of 28 to 29 inches (71 to 74 cm). Weights of a racket also vary between 8 ounces (230 g) unstrung and 12.5 ounces (350 g) strung.
A tennis ball is a ball designed for the sport of tennis. Tennis balls are fluorescent yellow at major sporting events, but in recreational play can be virtually any color. Tennis balls are covered in a fibrous felt which modifies their aerodynamic properties, and each has a white curvilinear oval covering it.
Players often use sweat bands on their wrists to keep their hands dry and head bands or bandanas to keep the sweat out of their eyes as well. Finally, although the game can be played in a variety of shoes, specialized tennis shoes have wide, flat soles for stability and a built-up front structure to avoid excess wear.