The shape and size of this carabiner make it great for most uses, from connecting a belay device to your harness to using it as a connector at the end of a lanyard. The D-shape makes it one of the strongest and lightest locking carabiners Petzl makes.
D-shape has the highest strength-to-weight ratio of all carabiner designs
Available with manual locking system (SCREW-LOCK) or auto-locking systems (BALL-LOCK, TRIACT-LOCK)
Perfectly suited for use with belay devices due to its symmetric shape on both ends of the carabiner