What are the classifications of squash balls?
Squash is divided into blue penalties, red penalties, white penalties and yellow penalties in order of elasticity. The yellow penalty kick is the standard match ball. Others are suitable for beginners or informal slow-paced games and practice, as well as in lower-temperature courts.
The squash ball is smaller than the tennis ball. It is a small hollow ball with a rubber surface. The squash ball is filled with inert gas. When the squash ball is hit, the gas is heated and expanded due to friction, and its flying speed can reach a speed of 150 meters per hour. Generally, the color of the ball is black, but the ball used in the game in a transparent field is white. Color dots are printed on the surface of the ball to indicate the speed of the ball. The yellow dot represents extremely slow, the red dot represents medium speed, and the blue dot represents fast. A fast ball has more elasticity, and a slower ball has less elasticity.
For novices, it is easier to play with a blue penalty. Because a higher rebound gives you more time to catch it. Although the rebound force of the red penalty kick is smaller than that of the blue penalty kick, it is also suitable for beginners. White penalty kicks are suitable for players who have the correct technique but lack the strength to hit the ball to the back wall. All the balls used in official matches are yellow penalties. The specifications of the standard yellow dot ball are: the diameter of the ball is 39.5-41.5 mm; the weight is 23-25 grams.
