You might often notice numbers on top of the tube：76, 77, 78, 79 or 1, 2, 3, 4，What do these labels mean?The smaller the label value (lighter weight), the slower the speed, and the larger the label value (heavier weight), the faster the speed. ~
The shuttlecock is very light. The speed is determined by the weight of the shuttlecock.；Secondly, the temperature, and the altitude of the court also have a great impact on its weight.
In general, we should play with light weight shuttlecock in high temperature, high humidity, or high altitude in summer. ~
In contrast, heavier shuttlecock will be a better choice when the temperature is low, the climate is dry, the humidity is small, or the low altitude in winter.