Peakworks® Carabiners are perfect for mountaineering, rock climbing, fire & rescue protection, construction, caving & many other industrial occupations. This 1" carabiner is lightweight, easy to use with a convenient double locking mechanism. Made with zinc plated steel, this high-strength carabiner resists rust, corrosion and weathering. With a gate strength requirement of 3,600 lb., this double locking carabiner meets ANSI Z359.12 standards.