Carabiner mobile loop-shaped wire.

Carabiner (10) comprising: - a metal body (11) as an open ring having a first end (E1) equipped with a retaining element (14), - a movable loop (12) about an axis (13 ) between a closed position and an open position, being located said shaft in proximity to the second end (E2) of the body (11), - a flexible return device (16) requesting the loop (12) to the position closure, wherein the loop (12) is formed by a rigid metal wire diameter smaller than that of the body (11), incorporating said wire a protrusion (15A) at one end to form a male engagement member (15) and an articulation loop (17) opposite to the shaft passage (13) end.