| I.P Abstract & Summary |
An ornament stud for an article is provided. The stud includes: a head having a three-dimensional shape; a plurality of shoulders extending horizontally and inwardly from an edge of the head by a predetermined length; and a plurality of sharpened extensions extending respectively and vertically from inner edges of the plurality of shoulders, the plurality of sharpened extensions being spaced from each other along the inner edges of the plurality of shoulders by a predetermined distance. |