Fitment: Works for MinnKota 35-70lb Models. Function: Designed to lessen prop noise and vibration; Stabilizes the prop by providing a larger contact point. 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. Superior Material: Machined from 6061 Billet Aluminum anodized red , anti-rust, providing a long-term service. Colour: black Material: metal Package Contents: 1 x Motor 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.