The Solas Amita 4-Blade Mercury/Honda 90hp and Above Aluminum Propeller is made using a state-of-the-art squeeze-casting process to make it stronger and tougher than traditional die-cast propellers. Squeeze casting produces propellers with finer grain and much less porosity than die casting and equals thinner yet stronger blades. This means that your Solas propeller is sure to provide outstanding acceleration, cruising, and top-end speed. Superior coatings and a high-tech 4-layer painting process ensure anti-corrosion performance. Traditional pressed-in rubber hub absorbs vibration and reduces slipping. Right rotation. State-of-the-art squeeze-casting process Outstanding acceleration, cruising, and top-end speed Traditional pressed-in rubber hub