| 摘要 |
An adjustable loop element includes a length of a material, a first slide and a second slide. A first end of the length of the material is secured at the first slide. A second end of the length of the material is secured at the second slide. The length of the material slidably passes through the first slide and the second slide between the first end and the second end of the length of the material to form at least a first closed loop. |
