EDSON MARINE Sportsman's PowerKnob aka Suicide knob
Steer your boat like a pro with the Edson ProSeries or Sportsman’s PowerKnob. Twin races full of super-smooth Delrin ball-bearings make quick turns effortless while backing down on a fish, docking or maneuvering in tight quarters. Easy to mount strap-on design includes tool for installation. Fits all wheel rims 5/8" to 1-1/8"dia. 25-year warranty.