The dip bait has been used by fishermen for over 40 years. It was the first catfish dip bait commercially marketed. The chumming or milking action begins as soon as the bait hits the water. The resulting scent-trail puts catfish in the “feeding mode.” Catfish come out of their hiding places to follow the trail that gets them hooked. The product is used on either a sponge attached to a treble hook (usually a size 4 or 6) or a grooved plastic worm.