1. Fitment: Works for MinnKota 80, 101 and 112. NOTE: Will not work with and Hydrilla Hacker Props. 2. Function: Designed to lessen prop noise and vibration; Stabilizes the prop by providing a larger contact point. 3. Great Design: This Eliminator Prop Nut acts as a heat sink, it has built-in cooling ports that reduce the operating temperature for longer battery and trolling motor life. No tools needed with easy to grip knurled edge design. 4. Superior Material: Machined from 6061 Billet Aluminum anodized black , anti-rust, providing a long-term service. Colour:Black Material:metal Package Contents: 1x Eliminator Prop Nut Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.