I've only seen them ready rigged, just a colored tube anywhere's from 16-24 inches, a heavy swivel to wire w/ another swivel and hook near the front, to another length of wire (all inside the tube) to a hook near the end of the tube... I've seen green, red, and black ones.... some guys drift with 'em and some troll with em... slow, real slow
don't know why they call it "tube n worm" I've haven't seen guys bait 'em with anything... just troll or drift along structure...
again, I've never used one, this is only what I've seen done... someone else should chime in here hopefully that has used 'em.. I really hate giving second hand info..
hey tube n worm guys.. help this dude out ... I do know they work well when used right.. some guys use them exclusively..
Beware the "sneak attack"!!