The ball is not made of feathers

Like natural feather balls, non-feather balls are subject to certain standards.

The canopy, or similar parts made of synthetic materials, will replace the natural feathers.

The bridge base must be between 25mm and 28mm in diameter and be curved at the bottom.

Similar to a ball made of natural feathers, the canopy should be of uniform length and be between 62mm and 70mm when measured from the top of the canopy to the top of the base of the bridge. The top of the canopy should rest on a circle with a diameter of 58 mm to 68 mm.

The sphere must weigh between 4.74g and 5.5g.

However, because there are differences in specific gravity and other parameters between synthetic materials and natural feathers, an error of up to 10% is acceptable.

Considering that there is no variation in the general design, speed and flight path of the sphere, modifications to the specifications of the sphere shall be made only with the permission of the Member Associations concerned. , in places where weather conditions are dependent on altitude or climate, rendering the standard sphere unsuitable.

To test a shuttle, a player must use a full-force stroke from the end goal line. The bridge must fly in a direction parallel to the longitudinal boundary line and upwards.

A ball of standard airspeed will land on the court at a position not less than 530mm and not more than 990mm from the remaining sideline at the other end of the court.

Accuracy and power for many bridges will be pushed up if you have a strong wrist. To improve and maintain each day, you should regularly practice the following wrist exercises:

– You can use a badminton racket or replace it with a bottle of water. Then steadily flex your wrists to the beat, like you're competing. You can also use the Power Ball wrist trainer.

  Powerball is a pretty fun game. This equipment helps athletes both increase the strength of the hand muscles, and have fun because they can compete at speed. Players can also use this tool to practice effectively for sports such as tennis, table tennis, golf, baseball climbing, ... and even musical instruments such as piano, organ ... Powerball especially suitable for warm-up before playing tennis, strengthen hands, prevent injury.