Not only does it look cool, the larger contact point of T-H Marines G-Force Eliminator Minn Kota Prop Nut reduces the vibration and noise of your trolling motor by acting as a harmonic dampener on the prop shaft. The machined 6061 billet aluminum also serves as a heat sink, keeping your trolling motor cooler, thus improving battery life and the life of the motor. 112 fits Minn Kota 80,101 and 112-lb thrust models. Size 70 fits Minn Kota 30 thru 75-lb thrust models. Sizes: 70, 112. Colors: Black, Red. Cancer and Reproductive Harm- www.P65Warnings.ca.gov.