SP on the racket refers to "foam sponge", which is one of the important components of the racket. SP foam sponge is generally installed under the bridge of the racket, which is mainly used for shock absorption, hand decompression and control.

SP foam sponge material is divided into different hardness grades, and different sponge hardness will have different effects on the feel, strength, rotation and control of the racket.

There are three factors to consider when choosing the SP foam sponge that suits you: hardness, thickness and shape. Hardness is usually represented by a numerical code. The harder the sponge, the higher the strength and speed of the racket. The thickness is generally between 0 mm and 5 mm, which will affect the control and feel of the racket. You can choose different shapes according to your personal preference.

When choosing, it is best to try different foam sponge materials and hardness to find the model that suits you best.

Importance of SP foam sponge to table tennis players

SP foam sponge is as important to table tennis players as the racket itself. Appropriate SP foam sponge can help athletes to get better hand feeling and ball control ability, thus improving the level of competition and the chances of winning.

SP foam sponge on the racket is also a technical research. Table tennis manufacturers constantly adjust the hardness and shape of sponges to adapt to athletes of various competition types and technical levels.