To provide a method of interlacing strings at their intersection points to form a net for increasing the instant and uniform diffusion of impact applied to a racket surface all over the same and absorbing the impact therein more effectively when the net hits a tennis ball and consequently suppressing a swing generated in a hand or arm grasping the grip or preventing the misalignment of bonded portions or the generation of gaps in the racket surface more effectively.

The net 2 of strings, which are interlaced with one another and stretched, instantly and uniformly diffuses and absorbs vibrations generated by the impact from the center of impact all over the racket frame. Enhancing the diffusing and absorbing performance of the impact enables a suppression of a swing or vibration generated in the hand or arm grasping the grip. It further prevents the racket surface from getting misaligned at the bonded portions thereof or generating the gaps.