●Machined from 6061 billet aluminum with anodized protective finish ●Specific durometer O-ring dampens noise/vibration and secures nut ●Wider contact area for a more stable Prop ●Cooling ports aid in heat dissipation ●Eliminator nut helps dampen trolling motor Prop noise and vibrations; designed to fit minnkota 80,101 and 112 series trolling motors