1. APPLICATION: The buys after market prop. Compatble for BRP, JOHNSON, EVINRUDE, E-TEC 40 - 140HP 2 - stroke with 13 spline tooth shaft. Please check your engine shaft before purchasing and refer to product description area for Detailed Engine Application. 2. INSTALLATION: Always shift engine into the neutral position and turn ignition off before servicing the propeller and it is important to refer to your Engine's Owner Manual for important precautions. Install the propeller with exist thrust washer, spacer, nut of engine lower unit shaft. Prop comes with split pin. 3. MATERIAL: Made of high-strength aluminum. Boasting hybrid casting of strontium, aluminium and titanium that are far stronger and durable than ever before. 4. EXTREME ANTI-CORROSION: Props are robotic powder-coated using AkzoNobel patented anti-corrosive coating powder. It is environmentally . Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store