The Boss bobber is perfect for catching all types of fish from easily spooked walleye, to aggressive bass. Making you the BOSS at catching fish, while the BOSS bobber does all the work. The stem, wrapped with a stainless steel spring, gets pulled down through the body, spreading the bobber's resistance out over several inches to provide unmatched sensitivity. This gives you the upper hand because... by the time fish feel it, it's too late!