| 摘要 |
<p>The sleeves (2) protecting the outer ends of shoelaces (1) are normally made of copper and designed as short tubes closed at one end and provided with longitudinal gaps facilitating the sleeve to be compressed for a tight fit. The new design (2) has no gap with sharp edges, therefore protecting the user from injuries, and is made of an aluminum alloy which can be easily compressed (M) and produced in various colors.</p> |
