BD lightest full-function pear locker, the Black Diamond VaporLock carabiner provides a smooth increase in friction and is ideal for belaying and rappelling when you want more control. Increases friction up to 30% when lowering or rappelling with an ATC Munter Hitch compatible on ropes up to 9.4 mm Keylock nose prevents snagging Screwgate sleeve Type H or HMS connector. For dynamic belaying using a Munter Hitch or belay device. Weight: 52 g (1.8 oz) Closed Gate Strength: 21 kN (4,721 lbf) Open Gate Strength: 7 kN (1,574 lbf) Minor Axis Strength: 8 kN (1,798 lbf) Gate Opening: 20 mm (0.79 in)