The Nogales Worm Stopper can be slid up the line and used as a bobber stop or peg, they can be slid over a hook to keep a trailer hook attached, they can be slid over a hook to keep a bait from sliding down, they can be added to a jig hook to keep the trailer in place, and on and on and on.
** WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. **