The Ultra D is similar in size to the Ultra O but with even greater strength due to the back configuration. The pronounced D-shape forces the loading along the major axis of the carabiner to maximise strength. Perfect for use at the end of lanyards, and in fact for most other working at height applications.
D-Shaped for simplicity; loads connector along the major axis
Keylock clean nose for snag free connection
Captive bar option for security