This is a Black Diamond carabiner. This locking carabiner is for belaying/rappelling and features a unique gate design that prevents the carabiner from rotating on the harness's belay loop, ensuring high safety. * Unique gate design prevents carabiner rotation * Hot forging is used * Cross-section shape allows for a large contact area with the rope and smooth rope flow. Strength: Closed gate = 22kN Open gate = 8kN Minor axis = 7kN Gate opening: 21mm Weight: 76g