Spring bobbers also allow for a little give in the line when a fish bites so that the line doesn't break and the hook doesn't tear the lip of the fish. Another important thing spring bobbers do is smooth out the motion of the jig so the lure or bait moves more naturally in the water. This is called “swimming the bait”, and it mimics the motion of the many small aquatic prey that make up the natural food sources of many fish. Spring bobbers will absorb all of your jerks and any flickering motions of the wrist and also dampen any twitching that might accidentally be occurring.