Hunter Safety System HSS Climbing Carabiner 2 Pack Black. Engineered with a wide-mouth opening for easy snag-proof tether connection. These rust-proof carabiners also feature a ball and joint closure for maximum strength. The large knurled locking nut is easy to locate in low-light conditions. Each carabiner is rated to 5600 pounds. Specifications for Hunter Safety System HSS Climbing Carabiner: Manufacturer: Hunter Safety System Color: Black Fabric/Material: Aluminum Carabiner Type: Locking Biner Features of Hunter Safety System HSS Carabiner 2pk: Rust proof 5600 lb rating 2.5 ounces each Package of 2 Package Contents: Hunter Safety System HSS Carabiner 2pk Hunter Safety System HSS-2CAR: HSS Climbing Carabiner 2 Pack Black