| 摘要 |
The improvements consist in establishing, inside the body of the cover 4, a plurality of studs 2 which are physically mutually independent, identical, and whose number and distribution will be variable as a function of the characteristics of the actual cover 4 and of the heel for which it is intended, said studs 2 being specifically located in numerical and positional coincidence with the housings 7 of the heel 6 for which the cover 1 is intended. <IMAGE>
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