Extremely strong steel HMS carabiner with an internal spring bar to prevent it from twisting .Ideal for situations with greater wear (belaying with a tubular belay device or top-roping.).Keylock closure mechanism for optimum handling when clipping and unclipping.Available with either screw or triple lock.Spring bar holds the carabiner in place when belaying to prevent cross loading.H-profile construction ensures best possible use of material and minimal weight.Designed to perfectly complement the geometry of belay devices from the Jul family.Weight without packaging (g):142.