Hunter Safety System 2-Pack of Locking Carabiners are constructed of lightweight, super strong aluminum. These carabiners have a high tensile strength that is rated at 5600 pounds with the screwgate in position. The screwgate closes the opening in the carabiner and secures a rope or other connection. Having these extra carabiners is great for all around use. The durability is extreme and it will face up to almost everything other than sawing it in 2. Replace your former carabiners on your lifelines, quick detaching straps, body harness, or other application with this pair.