Designed for belaying, rappelling, or anchors, the Black Diamond RockLock Screwgate Carabiner makes your climb safer. This carabiner has a square hinge end that securely holds your belay loop and is easily operable with one hand. DESIGN Climbing carabiner Lightweight hot-forged construction Curved spine for wide gate opening Square hinge securely holds belay loop Easy to operate with one hand Snag-free Keylock nose Screwgate sleeve Uses Type H or HMS connector - can be used with Munter Hitch or belay device SPECS Weight: 85 g (3 oz.) Gate Opening: 21 mm (0.83") Gate Strength (Closed): 24 kN (5395 lbf) Gate Strength (Open): 7 kN (1,574 lbf) Minor Axis Strength: 8 kN (1,574 lbf) Additional Details Style: BD21025