Black Diamond Positron Rock Climbing Bentgate Carabiner - The Positron Rock Climbing Bentgate Carabiner by Black Diamond is a classic keylock carabiner. The Positron is a smooth operator for racking and placing stoppers or clipping and cleaning bolts. Smaller than the Dynotron, yet the functional shape is very easy to hold and the keylock nose doesn't snag. The bow back, smooth spring and deep basket make it the most versatile clipping, racking and anchoring biner. If you want to have one of the most lightweight and durable biner's in your rack, you are going to love the Positron Rock Climbing Bentgate Carabiner by Black Diamond.