The Petzl AM`D Triact-lock Aluminum carabiner is a D shaped carabiner with a large gate opening. It is excellent for connecting devices to a harness or at the end of a lanyard. Its shape resists cross loading well. Extremely secure utilizing a triple-action opening. Asymmetric shape for an exceptional strength to weight ratio. D shape best suited for connecting a belay system or for holding equipment Fluid interior design limits the risk of having a catch point and facilitates rotation of the carabiner Whe...