Alice Aluminum propellers for Yamaha outboard engines. ↵ Durable: made of aerospace Aluminum-Titanium alloy ↵ Balanced: 3D laser scanning for static and dynamic control ↵ Anti-corrosion: robotical AkzoNobel powder coating ↵ Performing: high efficiency and reduced consumption thanks to blades perfect cupping ↵The mounting kit must be ordered separately if necessary to replace nuts, washers and spacers. ↵↵For Yamaha outboard engines: ↵2A/B (pin drive) ↵F2.5A/3A ↵4A/5C/F4A/F5A