Differences between inverted rubber, short pips, and long pips on a ping pong paddle

　　Ping pong paddle manufacturers tell you that the characteristic of inverted rubber is strong spin, stable hitting, and easy control. It is suitable for looping or loop combination fast attacks. Due to stable hitting and good control, it is also a choice type for beginners. For professional players, inverted rubber sponge paddles offer many different performance options, such as tackiness, softness, and thick support, thus having good characteristics. Inverted rubber is commonly used in penhold and shakehand styles. Almost 100% of European players and nearly 80% of Asian players use this type of rubber because it better meets the requirements for speed and spin. Most international players use inverted rubber. For example, Waldner, Persson, Seve, Wang Nan, Gatien, Wang Tao, Kong, Deng Yaping, Li Ju, Yan Sen, Feng Zhe, etc., all use the same color rubber, either positive or negative. It is hoped that athletes' rubber has a high bonding force, meaning the rubber surface will be sticky, resulting in a high coefficient of friction. Besides professional athletes who can replace rubber when conditions allow, amateur players may not have this condition, so it is important to understand rubber adhesion protection. A simple method is to clean with a soft foam sponge dipped in water after each practice. There are also special cleaners on the market that work better. The back cover is coated with a polyester film to prevent dust and oxidation.
　　Ping pong paddle manufacturers can tell you that raw rubber refers to granules that protrude upward, generally with a diameter larger than the height of the rubber. Its characteristic is that the ball sinks and the spinning motion is weak. Because raw rubber reduces the ability to generate spin, it is especially suitable for controlling the ball. To achieve variations in students' hitting, a group of players with penhold paddles on both sides adopted a matching research method using backhand inverted rubber (looping) and backhand raw rubber (fast flick and short swing). Currently, world champion Wang Tao and famous Chinese players Chen Jing, Geng Lijuan, etc., use backhand raw rubber playstyle. Female players from South Korea and North Korea particularly like to learn this matching method. This type of rubber with such technical performance can be used as a negative example for penhold backhand inverted rubber.
　　Ping pong paddle manufacturers tell you that long pips rubber is a thin and long rubber covering glued onto a thin sponge. Rubber sponge was invented in China in the 1960s. At that time, Zhang Xielin used this type of rubber to produce varied shots and was called the Ping pong magician. This is because this type of rubber causes abnormal spin phenomena on the paddle surface. Typical changes are: when the opponent tries to rub a backspin ball, using long pips rubber to rub it will cause the spin to reverse upward; when the opponent attacks with topspin, using long pips rubber to block will cause the ball to spin back underneath; a spinning return ball will give the ball more spin, while a spinning return ball will give the ball no spin. These abnormal changes often lead to errors or high balls, making it easy to win against those unfamiliar with long pips rubber performance. However, playing with this type of rubber not only causes more opponent errors but also is difficult for oneself to master, greatly reducing the fun and entertainment of Ping pong. In May 1998, the International Table Tennis Federation held a council meeting in Durban, South Africa, and passed a resolution by 19 votes to 18 to ban the use of long pips rubber, stipulating that the ratio of plastic height to diameter should not exceed 1:1. Young athletes should not use long pips rubber; on one hand, it is difficult to master, and on the other hand, it easily causes a negative stereotype if not careful. The Chinese Ping pong Association stipulates that long pips rubber is not allowed in youth competitions.

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