The Ikiru Jerk 120LL from PREDATOR in its largest form. The Jerk 120 works to a depth of 4 meters. The internal magnetic weight transfer system shifts the internal weight to the back of the lure, helping with a balanced, accurate and long cast. There are two ratchets in the lure, one in the head and one in the tail for extra attraction. The very slow sinking action of the lure helps it almost "freeze" when the reel is stopped. This is a top feature that gives you complete control over the action of the lure.