| 摘要 |
The subject of the invention is related to the technical field of sports and more particularly of means for marking. According to the invention, at least two rings 10 and 11 are inserted between the bearing washers 4 and 5 located at each end of the rubber stop-piece 3, which rings extend over the whole height of the said stop-piece so as to improve the stability of the stake in the vertical position. <IMAGE> |
