Shaanxi Badminton 77, 76

In Shaanxi, the choice of badminton varies according to the air humidity and temperature. Generally speaking, it is more appropriate to use 77-speed badminton at room temperature. If the temperature rises or the air is dry, you can choose 76-speed badminton. On the contrary, you can choose 78-speed badminton in cold areas or weather conditions.

Please note that the speed here refers to the flying speed of badminton, not the hitting speed of athletes.