Table tennis has three stars at most, and there are three specifications of table tennis, which are distinguished by the number of stars. The more stars there are, the better the quality of the ball, and the highest quality is Samsung.

Samsung ball, its weight is between 2.53 and 2.64 grams, and the weight error is very small. The overall roundness error is less than 0. 15 mm, and the hardness is less than 0.8 mm At present, all the professional games we see use this kind of ball.

Two-star table tennis, with a weight of 2.4-2.53g, roundness error less than 0.25mm and hardness less than 0.9mm, is currently selected by national professional teams in training.

One-star table tennis weighs 2.35-2.63g, the roundness error is less than 0.25mm, and the hardness is less than 1. 1 mm. Because one-star table tennis is the cheapest, we usually see this kind of star in park schools or gyms.