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.
Guqin strings
In 2016, the Japanese string maker, Marusan Hashimoto, produced what they call hybrid strings for qin. They are made like traditional silk strings but with a Tetron twisted core and for the four thicker strings having a nylon wrapping. Their main selling point is that they can be tuned to standard pitch without breaking and are more stable. Other than that, they are very similar to silk strings, especially in the sound being the closest compared to the other synthetic strings.