Easy to set up just by attaching it to the hook of a red snapper!Can be used as a replacement for a necktie!! Of course, it can also be used in combination with a necktie. Strong vibrations make it easy for the worm to get stuck on the hook and turn into a shrimp, but with a weak vibration setting, it is less likely to turn into a shrimp and can hook into the mouth of a tough sea bream!