
-metal loop with spring-loaded gate (opening), used as
connector. Almost all carabiners for recreational climbing are
made from aluminium alloy. There are also steel carabiners.
-Types of carabiner: locking and non-locking.
-Types of gates including wire-gate, bent-gate, and straight-gate.
-Different gates have different strengths and uses. Most locking carabiners utilize a straight-gate.
-Bent-gate and wire-gate carabiners are usually found on the rope-end of quickdraws, as they facilitate easier rope clipping than straight-gate carabiners.