what is carabiner used for
what is carabiner used for? Carabiners (often shortened to 'crab' or 'biner') are the mainstay of the climbing system. They're used to attach the rope to pieces of equipment, or to join two or more pieces of equipment together. Generally made of 7075 anodize aluminium. Shapes vary, but it's always some kind of elongated triangle or [...]