What is "carabiners"

Usage examples of "carabiners".

The weight of water on the line, the number of carabiners through which it was strung, and his growing weakness combined to make this impossible.

He carried two full coils of climbing rope at his left hip and a webbed nylon belt around his waist slung with steel ice screws, carabiners, pitons, rope clips, and pulleys.

By the time he had descended twenty meters and had laced the line through eight carabiners, it took dangerous effort to tug slack against the heavy friction of the soaked rope through so many snap links.