Strings (tennis)
The material used in tennis string can significantly affect a player's performance, and even health. Several materials are used to make tennis strings. They vary in terms of elasticity, durability, rebound efficiency, tension holding capability, and manufacturing cost, among other considerations.
Tennis technology
Early rackets were made of wood, which was not as good as modern materials, since wood has inconsistencies, resulting in different feels when striking the ball. Wood rackets needed a brace to stop warping when not in use. Later designs used metals, with experimenting with metals such as aluminum, magnesium and titanium.