Black Diamond Oz vs. Petzl Ange - Carabiner Comparison - YouTube
Heroclip Aluminum Oval Carabiner - Stealth Black, 3.7-in Length, 2 oz. Weight, 1.5-in Maximum Opening, 360 Rotation, Sturdy and Versatile in the Carabiners department at Lowes.com
Black Diamond Oz Carabiner Review | Tested by GearLab