| 摘要 |
<p>The invention relates to a system located on the handle of the tennis racket, intended for the correct positioning thereof in the player's hand, with a view to quickly and correctly learning how to play tennis. According to the invention, the system comprises a part (A) which is a resilient ring or a self-adhering sticker divided into 8 differently coloured rectangular sections, numbered from 1 to 8, each section corresponding to an edge of the tennis racket handle, this part being located in the handle part adjacent to the stringing, and a part (B) which is an octagon-shaped self-adhering sticker which is placed on the section of the same shape at the back of the tennis racket handle and is also divided into 8 differently coloured triangular sections, numbered from 1 to 8, where each colour corresponds to the same number in both devices.</p> |
