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Using a four-bar linkage that drives a climber's body weight into the rope, the nForce ascender offers 33% more clamping force than any conventional ascender design on the market for maximum grip on icy or muddy ropes. Fast cam manipulation can be achieved by using the thumb, trigger finger or the edge of the frame. The comfortable, full sized molded handgrip accommodates gloves, while a 360 degree biner clip-in point allows full rotation of any locking biner.